Marcus Aurelius Antoninus (Latin: [ˈmaːr.kus̠ auˈreː.li.us̠ anˈtoː.niː.nus̠]; English: /ɔːˈriːliəs/ aw-REE-lee-əs;[2] 26 April 121 – 17 March 180) was Roman emperor from 161 to 180 AD and a Stoic philosopher. He was the last of the rulers known as the Five Good Emperors (a term coined some 13 centuries later by Niccolò Machiavelli), and the last emperor of the Pax Romana, an age of relative peace, calmness and stability for the Roman Empire lasting from 27 BC to 180 AD. He served as Roman consul in 140, 145, and 161.Marcus Aurelius was born during the reign of Hadrian to the emperor's nephew, the praetor Marcus Annius Verus, and the heiress Domitia Calvilla. His father died when he was three, and his mother and grandfather raised him. After Hadrian's adoptive son, Aelius Caesar, died in 138, the emperor adopted Marcus's uncle Antoninus Pius as his new heir. In turn, Antoninus adopted Marcus and Lucius, the son of Aelius. Hadrian died that year, and Antoninus became emperor. Now heir to the throne, Marcus studied Greek and Latin under tutors such as Herodes Atticus and Marcus Cornelius Fronto. He married Antoninus' daughter Faustina in 145.
After Antoninus died in 161, Marcus Aurelius acceded to the throne alongside his adoptive brother, who reigned under the name Lucius Verus. Under his rule the Roman Empire witnessed heavy military conflict. In the East, the Romans fought successfully with a revitalized Parthian Empire and the rebel Kingdom of Armenia. Marcus defeated the Marcomanni, Quadi, and Sarmatian Iazyges in the Marcomannic Wars; however, these and other Germanic peoples began to represent a troubling reality for the Empire. He modified the silver purity of the Roman currency, the denarius. The persecution of Christians in the Roman Empire appears to have increased during his reign, but his involvement in this is unlikely, as early Christians living in the 2nd century never claimed him as a persecutor and Tertullian even called Marcus a "protector of Christians".[3] The Antonine Plague broke out in 165 or 166 and devastated the population of the Roman Empire, causing the deaths of five to ten million people. Lucius Verus may have died from the plague in 169.
Unlike some of his predecessors, Marcus chose not to adopt an heir. His children included Lucilla, who married Lucius, and Commodus, whose succession after Marcus has been a subject of debate among both contemporary and modern historians. The Column and Equestrian Statue of Marcus Aurelius still stand in Rome, where they were erected in celebration of his military victories. Meditations, the writings of "the philosopher" – as contemporary biographers called Marcus – are a significant source of the modern understanding of ancient Stoic philosophy. These writings have been praised by fellow writers, philosophers, monarchs, and politicians centuries after his death.
Marcus was born in Rome on 26 April 121. His birth name is sometimes given as Marcus Annius Verus, but sources assign this name to him upon his father's death and unofficial adoption by his grandfather, upon his coming of age.He may have been known as Marcus Annius Catilius Severus, at birth or some point in his youth,or Marcus Catilius Severus Annius Verus. Upon his adoption by Antoninus as heir to the throne, he was known as Marcus Aelius Aurelius Verus Caesar and, upon his ascension, he was Marcus Aurelius Antoninus Augustus until his death;Epiphanius of Salamis, in his chronology of the Roman emperors included in his On Weights and Measures, calls him Marcus Aurelius Verus.Marcus' paternal family was of Roman Italo-Hispanic origins. His father was Marcus Annius Verus (III).The gens Annia was of Italic origins (with legendary claims of descendance from Numa Pompilius) and a branch of it, the Annii Veri, moved to Ucubi, a small town south east of Córdoba in Iberian Baetica.This branch rose to prominence in Rome in the late 1st century AD. Marcus's great-grandfather Marcus Annius Verus (I) was a senator and (according to the Historia Augusta) ex-praetor; his grandfather Marcus Annius Verus (II) was made patrician in 73–74.Through his grandmother Rupilia Faustina, Marcus was a member of the Nerva-Antonine dynasty; the emperor Trajan's sororal niece Salonia Matidia was the step-mother of Rupilia and her step-sister, Hadrian's wife Sabina.
Marcus's mother, Domitia Lucilla Minor (also known as Domitia Calvilla), was the daughter of the Roman patrician P. Calvisius Tullus and inherited a great fortune (described at length in one of Pliny's letters) from her parents and grandparents. Her inheritance included large brickworks on the outskirts of Rome – a profitable enterprise in an era when the city was experiencing a construction boom – and the Horti Domitia Calvillae (or Lucillae), a villa on the Caelian hill of Rome.Marcus himself was born and raised in the Horti and referred to the Caelian hill as 'My Caelian'.
The adoptive family of Marcus was of Roman Italo-Gallic origins: the gens Aurelia, into which Marcus was adopted at the age of 17, was a Sabine gens; Antoninus Pius, his adoptive father, came from the Aurelii Fulvi, a branch of the Aurelii based in Roman Gaul.In late 136, Hadrian almost died from a hemorrhage. Convalescent in his villa at Tivoli, he selected Lucius Ceionius Commodus, Marcus's intended father-in-law, as his successor and adopted son, according to the biographer 'against the wishes of everyone'. While his motives are not certain, it would appear that his goal was to eventually place the then-too-young Marcus on the throne.] As part of his adoption, Commodus took the name, Lucius Aelius Caesar. His health was so poor that, during a ceremony to mark his becoming heir to the throne, he was too weak to lift a large shield on his own.After a brief stationing on the Danube frontier, Aelius returned to Rome to make an address to the Senate on the first day of 138. However, the night before the scheduled speech, he grew ill and died of a hemorrhage later in the day.
On 24 January 138, Hadrian selected Aurelius Antoninus, the husband of Marcus's aunt Faustina the Elder, as his new successor. As part of Hadrian's terms, Antoninus, in turn, adopted Marcus and Lucius Commodus, the son of Lucius Aelius. Marcus became M. Aelius Aurelius Verus, and Lucius became L. Aelius Aurelius Commodus. At Hadrian's request, Antoninus' daughter Faustina was betrothed to Lucius.Marcus reportedly greeted the news that Hadrian had become his adoptive grandfather with sadness, instead of joy. Only with reluctance did he move from his mother's house on the Caelian to Hadrian's private home.
At some time in 138, Hadrian requested in the Senate that Marcus be exempt from the law barring him from becoming quaestor before his twenty-fourth birthday. The Senate complied, and Marcus served under Antoninus, the consul for 139. Marcus's adoption diverted him from the typical career path of his class. If not for his adoption, he probably would have become triumvir monetalis, a highly regarded post involving token administration of the state mint; after that, he could have served as tribune with a legion, becoming the legion's nominal second-in-command. Marcus probably would have opted for travel and further education instead. As it was, Marcus was set apart from his fellow citizens. Nonetheless, his biographer attests that his character remained unaffected: 'He still showed the same respect to his relations as he had when he was an ordinary citizen, and he was as thrifty and careful of his possessions as he had been when he lived in a private household'.
After a series of suicide attempts, all thwarted by Antoninus, Hadrian left for Baiae, a seaside resort on the Campanian coast. His condition did not improve, and he abandoned the diet prescribed by his doctors, indulging himself in food and drink. He sent for Antoninus, who was at his side when he died on 10 July 138. His remains were buried quietly at Puteoli.The succession to Antoninus was peaceful and stable: Antoninus kept Hadrian's nominees in office and appeased the senate, respecting its privileges and commuting the death sentences of men charged in Hadrian's last days.For his dutiful behaviour, Antoninus was asked to accept the name 'Pius'.
Immediately after Hadrian's death, Antoninus approached Marcus and requested that his marriage arrangements be amended: Marcus's betrothal to Ceionia Fabia would be annulled, and he would be betrothed to Faustina, Antoninus' daughter, instead. Faustina's betrothal to Ceionia's brother Lucius Commodus would also have to be annulled. Marcus consented to Antoninus's proposal. He was made consul for 140 with Antoninus as his colleague, and was appointed as a seviri, one of the knights' six commanders, at the order's annual parade on 15 July 139. As the heir apparent, Marcus became princeps iuventutis, head of the equestrian order. He now took the name Marcus Aelius Aurelius Verus Caesar. Marcus would later caution himself against taking the name too seriously: 'See that you do not turn into a Caesar; do not be dipped into the purple dye – for that can happen'. At the senate's request, Marcus joined all the priestly colleges (pontifices, augures, quindecimviri sacris faciundis, septemviri epulonum, etc.); direct evidence for membership, however, is available only for the Arval Brethren.
Antoninus demanded that Marcus reside in the House of Tiberius, the imperial palace on the Palatine, and take up the habits of his new station, the aulicum fastigium or 'pomp of the court', against Marcus' objections. Marcus would struggle to reconcile the life of the court with his philosophic yearnings. He told himself it was an attainable goal – 'Where life is possible, then it is possible to live the right life; life is possible in a palace, so it is possible to live the right life in a palace'– but he found it difficult nonetheless. He would criticize himself in the Meditations for 'abusing court life' in front of company.
As quaestor, Marcus would have had little real administrative work to do. He would read imperial letters to the senate when Antoninus was absent and would do secretarial work for the senators. But he felt drowned in paperwork and complained to his tutor, Marcus Cornelius Fronto: 'I am so out of breath from dictating nearly thirty letters'.He was being 'fitted for ruling the state', in the words of his biographer.He was required to make a speech to the assembled senators as well, making oratorical training essential for the job.
On 1 January 145, Marcus was made consul a second time. Fronto urged him in a letter to have plenty of sleep 'so that you may come into the Senate with a good colour and read your speech with a strong voice'. Marcus had complained of an illness in an earlier letter: 'As far as my strength is concerned, I am beginning to get it back; and there is no trace of the pain in my chest. But that ulcer [...]I am having treatment and taking care not to do anything that interferes with it'. Never particularly healthy or strong, Marcus was praised by Cassius Dio, writing of his later years, for behaving dutifully in spite of his various illnesses. In April 145, Marcus married Faustina, legally his sister, as had been planned since 138. Little is specifically known of the ceremony, but the biographer calls it 'noteworthy'. Coins were issued with the heads of the couple, and Antoninus, as Pontifex Maximus, would have officiated. Marcus makes no apparent reference to the marriage in his surviving letters, and only sparing references to Faustina.
After Antoninus died in 161, Marcus was effectively sole ruler of the Empire. The formalities of the position would follow. The Senate would soon grant him the name Augustus and the title imperator, and he would soon be formally elected as pontifex maximus, chief priest of the official cults. Marcus made some show of resistance: the biographer writes that he was 'compelled' to take imperial power. This may have been a genuine horror imperii, 'fear of imperial power'. Marcus, with his preference for the philosophic life, found the imperial office unappealing. His training as a Stoic however, had made the choice clear to him that it was his duty.
Although Marcus showed no personal affection for Hadrian (significantly, he does not thank him in the first book of his Meditations), he presumably believed it his duty to enact the man's succession plans.Thus, although the Senate planned to confirm Marcus alone, he refused to take office unless Lucius received equal powers.The Senate accepted, granting Lucius the imperium, the tribunician power, and the title Augustus. Marcus became, in official titulature, Imperator Caesar Marcus Aurelius Antoninus Augustus; Lucius, forgoing his name Commodus and taking Marcus's family name Verus, became Imperator Caesar Lucius Aurelius Verus Augustus.It was the first time that Rome was ruled by two emperors.
In spite of their nominal equality, Marcus held more auctoritas, or 'authority', than Lucius. He had been consul once more than Lucius, he had shared in Antoninus's rule, and he alone was pontifex maximus.] It would have been clear to the public which emperor was the more senior.As the biographer wrote: "Verus obeyed Marcus [...] as a lieutenant obeys a proconsul or a governor obeys the emperor".
Immediately after their Senate confirmation, the emperors proceeded to the Castra Praetoria, the camp of the Praetorian Guard. Lucius addressed the assembled troops, which then acclaimed the pair as imperatores. Then, like every new emperor since Claudius, Lucius promised the troops a special donativum.[164] This donative, however, was twice the size of those past: 20,000 sesterces (5,000 denarii) per capita, with more to officers. In return for this bounty, equivalent to several years' pay, the troops swore an oath to protect the emperors.The ceremony was perhaps not entirely necessary, given that Marcus's accession had been peaceful and unopposed, but it was good insurance against later military troubles.Upon his accession he also devalued the Roman currency. He decreased the silver purity of the denarius from 83.5% to 79% – the silver weight dropping from 2.68 g (0.095 oz) to 2.57 g (0.091 oz).
Antoninus's funeral ceremonies were, in the words of the biographer, 'elaborate'.If his funeral followed those of his predecessors, his body would have been cremated on a pyre at the Campus Martius, and his spirit would have been seen as ascending to the gods' home in the heavens. Marcus and Lucius nominated their father for deification. In contrast to their behaviour during Antoninus's campaign to deify Hadrian, the Senate did not oppose the emperors' wishes. A flamen, or cultic priest, was appointed to minister the cult of the deified Divus Antoninus. Antoninus's remains were laid to rest in Hadrian's mausoleum, beside the remains of Marcus's children and of Hadrian himself. The temple he had dedicated to his wife, Diva Faustina, became the Temple of Antoninus and Faustina. It survives as the church of San Lorenzo in Miranda.
In accordance with his will, Antoninus's fortune passed on to Faustina.(Marcus had little need of his wife's fortune. Indeed, at his accession, Marcus transferred part of his mother's estate to his nephew, Ummius Quadratus. Faustina was three months pregnant at her husband's accession. During the pregnancy she dreamed of giving birth to two serpents, one fiercer than the other. On 31 August, she gave birth at Lanuvium to twins: T. Aurelius Fulvus Antoninus and Lucius Aurelius Commodus.[173][note 11] Aside from the fact that the twins shared Caligula's birthday, the omens were favorable, and the astrologers drew positive horoscopes for the children.] The births were celebrated on the imperial coinage.
Early rule
Soon after the emperor's accession, Marcus's eleven-year-old daughter, Annia Lucilla, was betrothed to Lucius (in spite of the fact that he was, formally, her uncle). At the ceremonies commemorating the event, new provisions were made for the support of poor children, along the lines of earlier imperial foundations. Marcus and Lucius proved popular with the people of Rome, who strongly approved of their civiliter ("lacking pomp") behaviour. The emperors permitted free speech, evidenced by the fact that the comedy writer Marullus was able to criticize them without suffering retribution. As the biographer wrote, "No one missed the lenient ways of Pius".
Marcus replaced a number of the empire's major officials. The ab epistulis Sextus Caecilius Crescens Volusianus, in charge of the imperial correspondence, was replaced with Titus Varius Clemens. Clemens was from the frontier province of Pannonia and had served in the war in Mauretania. Recently, he had served as procurator of five provinces. He was a man suited for a time of military crisis.] Lucius Volusius Maecianus, Marcus's former tutor, had been prefectural governor of Egypt at Marcus's accession. Maecianus was recalled, made senator, and appointed prefect of the treasury (aerarium Saturni). He was made consul soon after. Fronto's son-in-law, Gaius Aufidius Victorinus, was appointed governor of Germania Superior.
Fronto returned to his Roman townhouse at dawn on 28 March, having left his home in Cirta as soon as news of his pupils' accession reached him. He sent a note to the imperial freedman Charilas, asking if he could call on the emperors. Fronto would later explain that he had not dared to write the emperors directly.The tutor was immensely proud of his students. Reflecting on the speech he had written on taking his consulship in 143, when he had praised the young Marcus, Fronto was ebullient: "There was then an outstanding natural ability in you; there is now perfected excellence. There was then a crop of growing corn; there is now a ripe, gathered harvest. What I was hoping for then, I have now. The hope has become a reality".Fronto called on Marcus alone; neither thought to invite Lucius.
Lucius was less esteemed by Fronto than his brother, as his interests were on a lower level. Lucius asked Fronto to adjudicate in a dispute he and his friend Calpurnius were having on the relative merits of two actors. Marcus told Fronto of his reading – Coelius and a little Cicero – and his family. His daughters were in Rome with their great-great-aunt Matidia; Marcus thought the evening air of the country was too cold for them. He asked Fronto for 'some particularly eloquent reading matter, something of your own, or Cato, or Cicero, or Sallust or Gracchus – or some poet, for I need distraction, especially in this kind of way, by reading something that will uplift and diffuse my pressing anxieties.' Marcus's early reign proceeded smoothly; he was able to give himself wholly to philosophy and the pursuit of popular affection.Soon, however, he would find he had many anxieties. It would mean the end of the felicitas temporum ('happy times') that the coinage of 161 had proclaimed. In either autumn 161 or spring 162, the Tiber overflowed its banks, flooding much of Rome. It drowned many animals, leaving the city in famine. Marcus and Lucius gave the crisis their personal attention.In other times of famine, the emperors are said to have provided for the Italian communities out of the Roman granaries.
Fronto's letters continued through Marcus's early reign. Fronto felt that, because of Marcus's prominence and public duties, lessons were more important now than they had ever been before. He believed Marcus was 'beginning to feel the wish to be eloquent once more, in spite of having for a time lost interest in eloquence'. Fronto would again remind his pupil of the tension between his role and his philosophic pretensions: 'Suppose, Caesar, that you can attain to the wisdom of Cleanthes and Zeno, yet, against your will, not the philosopher's woolen cape'.
The early days of Marcus's reign were the happiest of Fronto's life: Marcus was beloved by the people of Rome, an excellent emperor, a fond pupil, and perhaps most importantly, as eloquent as could be wished. Marcus had displayed rhetorical skill in his speech to the senate after an earthquake at Cyzicus. It had conveyed the drama of the disaster, and the Senate had been awed: "Not more suddenly or violently was the city stirred by the earthquake than the minds of your hearers by your speech". Fronto was hugely pleased.
War with Parthia (161–166
On his deathbed, Antoninus spoke of nothing but the state and the foreign kings who had wronged him. One of those kings, Vologases IV of Parthia, made his move in late summer or early autumn 161. Vologases entered the Kingdom of Armenia (then a Roman client state), expelled its king and installed his own – Pacorus, an Arsacid like himself. The governor of Cappadocia, the frontline in all Armenian conflicts, was Marcus Sedatius Severianus, a Gaul with much experience in military matters.
Convinced by the prophet Alexander of Abonoteichus that he could defeat the Parthians easily and win glory for himself, Severianus led a legion (perhaps the IX Hispana into Armenia, but was trapped by the great Parthian general Chosrhoes at Elegeia, a town just beyond the Cappadocian frontiers, high up past the headwaters of the Euphrates. After Severianus made some unsuccessful efforts to engage Chosrhoes, he committed suicide, and his legion was massacred. The campaign had lasted only three days.
There was threat of war on other frontiers as well – in Britain, and in Raetia and Upper Germany, where the Chatti of the Taunus mountains had recently crossed over the limes.[205] Marcus was unprepared. Antoninus seems to have given him no military experience; the biographer writes that Marcus spent the whole of Antoninus's twenty-three-year reign at his emperor's side and not in the provinces, where most previous emperors had spent their early careers.
More bad news arrived: the Syrian governor's army had been defeated by the Parthians, and retreated in disarray. Reinforcements were dispatched for the Parthian frontier. P. Julius Geminius Marcianus, an African senator commanding X Gemina at Vindobona (Vienna), left for Cappadocia with detachments from the Danubian legions. Three full legions were also sent east: I Minervia from Bonn in Upper Germany, II Adiutrix from Aquincum, and V Macedonica from Troesmis.
The northern frontiers were strategically weakened; frontier governors were told to avoid conflict wherever possible. M. Annius Libo, Marcus's first cousin, was sent to replace the Syrian governor. His first consulship was in 161, so he was probably in his early thirties, and as a patrician, he lacked military experience. Marcus had chosen a reliable man rather than a talented one. Marcus took a four-day public holiday at Alsium, a resort town on the coast of Etruria. He was too anxious to relax. Writing to Fronto, he declared that he would not speak about his holiday.Fronto replied: 'What? Do I not know that you went to Alsium with the intention of devoting yourself to games, joking, and complete leisure for four whole days?' He encouraged Marcus to rest, calling on the example of his predecessors (Antoninus had enjoyed exercise in the palaestra, fishing, and comedy), going so far as to write up a fable about the gods' division of the day between morning and evening – Marcus had apparently been spending most of his evenings on judicial matters instead of at leisure.Marcus could not take Fronto's advice. 'I have duties hanging over me that can hardly be begged off', he wrote back. Marcus Aurelius put on Fronto's voice to chastise himself: ''Much good has my advice done you', you will say!' He had rested, and would rest often, but 'this devotion to duty! Who knows better than you how demanding it is!'
Fronto sent Marcus a selection of reading material, and, to settle his unease over the course of the Parthian war, a long and considered letter, full of historical references. In modern editions of Fronto's works, it is labeled De bello Parthico (On the Parthian War). There had been reverses in Rome's past, Fronto writes,but in the end, Romans had always prevailed over their enemies: 'Always and everywhere [Mars] has changed our troubles into successes and our terrors into triumphs'.
Over the winter of 161–162, news that a rebellion was brewing in Syria arrived and it was decided that Lucius should direct the Parthian war in person. He was stronger and healthier than Marcus, the argument went, and thus more suited to military activity. Lucius's biographer suggests ulterior motives: to restrain Lucius's debaucheries, to make him thrifty, to reform his morals by the terror of war, and to realize that he was an emperor.Whatever the case, the senate gave its assent, and, in the summer of 162, Lucius left. Marcus would remain in Rome, as the city 'demanded the presence of an emperor'.
Lucius spent most of the campaign in Antioch, though he wintered at Laodicea and summered at Daphne, a resort just outside Antioch.Critics declaimed Lucius's luxurious lifestyle, saying that he had taken to gambling, would 'dice the whole night through', and enjoyed the company of actors. Libo died early in the war; perhaps Lucius had murdered him.
successor kingdoms), opened its gates to the invaders. The city was sacked nonetheless, leaving a black mark on Lucius's reputation. Excuses were sought, or invented: the official version had it that the Seleucids broke faith first.
Cassius's army, although suffering from a shortage of supplies and the effects of a plague contracted in Seleucia, made it back to Roman territory safely.Lucius took the title Parthicus Maximus, and he and Marcus were hailed as imperatores again, earning the title 'imp. III'.Cassius's army returned to the field in 166, crossing over the Tigris into Media. Lucius took the title 'Medicus', and the emperors were again hailed as imperatores, becoming 'imp. IV' in imperial titulature. Marcus took the Parthicus Maximus now, after another tactful delay.On 12 October of that year, Marcus proclaimed two of his sons, Annius and Commodus, as his heirs.
War with Germanic tribes (166–180)
During the early 160s, Fronto's son-in-law Victorinus was stationed as a legate in Germany. He was there with his wife and children (another child had stayed with Fronto and his wife in Rome).The condition on the northern frontier looked grave. A frontier post had been destroyed, and it looked like all the peoples of central and northern Europe were in turmoil. There was corruption among the officers: Victorinus had to ask for the resignation of a legionary legate who was taking bribes.
Experienced governors had been replaced by friends and relatives of the imperial family. Lucius Dasumius Tullius Tuscus, a distant relative of Hadrian, was in Upper Pannonia, succeeding the experienced Marcus Nonius Macrinus. Lower Pannonia was under the obscure Tiberius Haterius Saturnius. Marcus Servilius Fabianus Maximus was shuffled from Lower Moesia to Upper Moesia when Marcus Iallius Bassus had joined Lucius in Antioch. Lower Moesia was filled by Pontius Laelianus's son. The Dacias were still divided in three, governed by a praetorian senator and two procurators. The peace could not hold long; Lower Pannonia did not even have a legion.
Starting in the 160s, Germanic tribes, and other nomadic people launched raids along the northern border, particularly into Gaul and across the Danube. This new impetus westwards was probably due to attacks from tribes further east. A first invasion by the Chatti in the province of Germania Superior was repulsed in 162. Far more dangerous was the invasion of 166, when the Marcomanni of Bohemia, clients of the Roman Empire since AD 19, crossed the Danube together with the Lombards and other Germanic tribes.[270] Soon thereafter, the Iranian Sarmatian Iazyges attacked between the Danube and the Theiss rivers.[271]
The Costoboci, coming from the Carpathian area, invaded Moesia, Macedonia, and Greece. After a long struggle, Marcus managed to push back the invaders. Numerous members of Germanic tribes settled in frontier regions like Dacia, Pannonia, Germany, and Italy itself. This was not a new thing, but this time the numbers of settlers required the creation of two new frontier provinces on the left shore of the Danube, Sarmatia and Marcomannia, including today's Czech Republic, Slovakia, and Hungary. Some Germanic tribes who settled in Ravenna revolted and managed to seize possession of the city. For this reason, Marcus decided not only against bringing more barbarians into Italy, but even banished those who had previously been brought there.
Trade with Han China and outbreak of plague
A possible contact with Han China occurred in 166 when a Roman traveller visited the Han court, claiming to be an ambassador representing a certain Andun (Chinese: 安 敦), ruler of Daqin, who can be identified either with Marcus or his predecessor Antoninus. In addition to Republican-era Roman glasswares found at Guangzhou along the South China Sea,Roman golden medallions made during the reign of Antoninus and perhaps even Marcus have been found at Óc Eo, Vietnam, then part of the Kingdom of Funan near the Chinese province of Jiaozhi (in northern Vietnam). This may have been the port city of Kattigara, described by Ptolemy (c. 150) as being visited by a Greek sailor named Alexander and lying beyond the Golden Chersonese (i.e. Malay Peninsula).Roman coins from the reigns of Tiberius to Aurelian have been found in Xi'an, China (site of the Han capital Chang'an), although the far greater amount of Roman coins in India suggests the Roman maritime trade for purchasing Chinese silk was centred there, not in China or even the overland Silk Road running through Persia.
The Antonine Plague started in Mesopotamia in 165 or 166 at the end of Lucius's campaign against the Parthians. It may have continued into the reign of Commodus. Galen, who was in Rome when the plague spread to the city in 166,mentioned that "fever, diarrhoea, and inflammation of the pharynx, along with dry or pustular eruptions of the skin after nine days" were among the symptoms. It is believed that the plague was smallpox. In the view of historian Rafe de Crespigny, the plagues afflicting the Eastern Han empire of China during the reigns of Emperor Huan of Han (r. 146–168) and Emperor Ling of Han (r. 168–189), which struck in 151, 161, 171, 173, 179, 182, and 185, were perhaps connected to the plague in Rome.[288] Raoul McLaughlin writes that the travel of Roman subjects to the Han Chinese court in 166 may have started a new era of Roman–Far East trade. However, it was also a "harbinger of something much more ominous". According to McLaughlin, the disease caused "irreparable" damage to the Roman maritime trade in the Indian Ocean as proven by the archaeological record spanning from Egypt to India, as well as significantly decreased Roman commercial activity in Southeast Asia.
Death and succession (180
Marcus Aurelius died at the age of 58 on 17 March 180 of unknown causes in his military quarters either in the city of Vindobona (province of Pannonia Superior, today Vienna) or near of Sirmium (province of Pannonia Inferior, modern Sremska Mitrovica).[note 18] He was immediately deified and his ashes were returned to Rome, where they rested in Hadrian's mausoleum (modern Castel Sant'Angelo) until the Visigoth sack of the city in 410. His campaigns against Germans and Sarmatians were also commemorated by a column and a temple built in Rome. Some scholars consider his death to be the end of the Pax Romana.
Marcus was succeeded by his son Commodus, whom he had named Caesar in 166 and with whom he had jointly ruled since 177.Biological sons of the emperor, if there were any, were considered heirs; however, it was only the second time that a "non-adoptive" son had succeeded his father, the only other having been a century earlier when Vespasian was succeeded by his son Titus