Dutch painter (active c.1460-80).
South Netherlandish painter, active also in Italy. First documented in 1460, when he matriculated in the Antwerp painters' guild, he subsequently moved to Ghent, entering the painters' guild on 6 October 1464. In 1467 he painted 40 escutcheons with the papal arms for the cathedral of St Bavo, Ghent, his only documented commission in the Netherlands. He sponsored the entry of Hugo van der Goes to the Ghent guild on 5 May 1467 and of Sanders Bening on 19 January 1469, the last date on which Joos is recorded at Ghent. He is stated, in a document of 1475, to have departed for Rome some time previously, with an advance of money from Hugo van der Goes. It is not known if Joos reached Rome, but it is generally accepted that he worked at Urbino, where early sources mention a Netherlandish painter, Giusto da Guanto (Justus of Ghent), who was responsible for the altarpiece of the Communion of the Apostles (Urbino, Pal. Ducale) of 1473-4.