 The name "Claes de Slutere van Herlam" is inscribed in the Register of the Corporation of Stonemasons and Sculptors of Brussels around the years 1379/1380.He then moved to the Burgundian capital of Dijon, where from 1385 to 1389 he was the assistant of Jean de Marville, court sculptor to Philip the Bold, Duke of Burgundy.From 1389 to his death he was court sculptor himself, with the rank of "valet de chambre".