The Third Crusade (1189–1192) was an attempt led by three European monarchs of Western Christianity (Philip II of France, Richard I of England and Frederick I, Holy Roman Emperor) to reconquer the Holy Land following the capture of Jerusalem by the Ayyubid sultan Saladin in 1187. For this reason, the Third Crusade is also known as the Kings' Crusade.

It was partially successful, recapturing the important cities of Acre and Jaffa, and reversing most of Saladin's conquests, but it failed to recapture Jerusalem, which was the major aim of the Crusade and its religious focus.

The term Angevin Empire describes the possessions of the House of Plantagenet during the 12th and 13th centuries, when they ruled over an area covering roughly half of France, all of England, and parts of Ireland and Wales, and had further influence over much of the remaining British Isles. It may be described as an early example of a composite monarchy. The empire was established by Henry II of England, who succeeded his father Geoffrey Plantagenet as Duke of Normandy and Count of Anjou (from which the term Angevins is derived).

The influence and power of the House of Anjou brought them into conflict with the kings of France of the House of Capet, to whom they also owed feudal homage for their French possessions, bringing in a period of rivalry between the dynasties.

The royal arms of England are the arms first adopted in a fixed form at the start of the age of heraldry (circa 1200) as personal arms by the Plantagenet kings who ruled England from 1154. In the popular mind they have come to symbolise the nation of England, although according to heraldic usage nations do not bear arms, only persons and corporations do (however in Western Europe, especially in today's France, arms can be territorial civil emblems). The blazon of the arms of Plantagenet is: Gules, three lions passant guardant in pale or armed and langued azure, signifying three identical gold lions (also known as leopards) with blue tongues and claws, walking past but facing the observer, arranged in a column on a red background. Although the tincture azure of tongue and claws is not cited in many blazons, they are historically a distinguishing feature of the arms of England. This coat, designed in the High Middle Ages, has been variously combined with those of the Kings of France, Scotland, a symbol of Ireland, the House of Nassau and the Kingdom of Hanover, according to dynastic and other political changes occurring in England, but has not altered since it took a fixed form in the reign of Richard I of England (1189–1199), the second Plantagenet king.