flourished с 1150–1210, Flanders
French enamelist and goldsmith, considered the greatest of his day.
He was an important figure during the transition from late Gothic style. His best-known work is the altarpiece of the Abbey Church of Klosterneuburg, Austria (1181), which reveals his mastery of metalworking and the technique of champlevé enameling, in which compartments hollowed out from a metal base are filled with vitreous enamel. The altar is the most ambitious of its kind in the 12th century.