c. 1380-1441. Flemish painter of the early northern Renaissance, one of the first to work in oils. His paintings are technically brilliant and sumptuously rich in detail and colour. Little is known of his brother Hubert van Eyck (died 1426), who is supposed to have begun the massive and complex altarpiece in St Bavo's cathedral, Ghent, The Adoration of the Mystical Lamb, completed by Jan 1432. Jan van Eyck is known to have worked in The Hague 1422-24 for John of Bavaria, Count of Holland. He served as court painter to Philip the Good, Duke of Burgundy, from 1425, and worked in Bruges from 1430. Philip the Good valued him not only as a painter but also as a diplomatic representative, sending him to Spain and Portugal in 1427 and 1428, and he remained in the duke's employ after he settled in Bruges. Oil painting allowed for subtler effects of tone and colour and greater command of detail than the egg-tempera technique then in common use, and van Eyck took full advantage of this. In his Arnolfini Wedding 1434 (National Gallery, London) the bride and groom appear in a domestic interior crammed with disguised symbols, as a kind of pictorial marriage certificate.