"The Ghent Altarpiece, also called the Adoration of the Mystic Lamb, is a very large and complex 15th-century polyptych altarpiece in St Bavo's Cathedral, Ghent, Belgium. It was begun around the mid-1420s and completed by 1432, and it is attributed to the Early Netherlandish painters and brothers Hubert and Jan van Eyck. The altarpiece is considered a masterpiece of European art and one of the world's great treasures, it was "the first major oil painting", and it marked the transition from Middle Age to Renaissance art.
The panels are organised in two vertical registers, each with double sets of foldable wings containing inner and outer panel paintings. The upper register of the inner panels represent the heavenly redemption, and include the central classical Deësis arrangement of God (identified either as Christ the King or God the Father), flanked by the Virgin Mary and John the Baptist. They are flanked in the next panels by angels playing music and, on the far outermost panels, the figures of Adam and Eve. The central panel of the lower register shows a gathering of saints, sinners, clergy, and soldiers attendant at an adoration of the Lamb of God. There are several groupings of figures, overseen by the dove of the Holy Spirit. The altarpiece is one of the most renowned and important artworks in European history.