painter who introduced the Flemish style into Urbino. He has been identified with Joos van Wassenhove, a master of the painters' guild at Antwerp in 1460 and at Ghent in 1464.

In Justus' earliest known painting, the “Crucifixion Triptych” (c. 1465), the attenuated, angular figures and the barren landscape articulated by short, taut curves reveal the influence of the painter Direk Bouts (Bouts, Dirck). The “Adoration of the Magi” (c. 1466) shows the continued influence of Bouts in its figures. In 1473–74 Justus of Ghent was in Italy, where he painted the “Communion of the Apostles,” now in the Palazzo Ducale at Urbino. This is the only absolutely authenticated picture by the master. It was painted at the bidding of Federico da Montefeltro, Duke of Urbino, who was introduced into the picture. Although this work is unmistakably Flemish, it shows that Justus had begun to be influenced by the simplicity of composition and idealization of forms characteristic of the Early Renaissance style in Italy. Several of the 28 portraits of famous men that decorated the duke's studiolo have also been definitely attributed to Justus.

Justus brought his northern traditions to Italy and there combined them with those of the Italian school. His development was gradual, and his later works are difficult to distinguish from those of Italian masters.