(Or Chastelain), a Burgundian chronicler, born in the County of Alost, Flanders, in 1403; died at Valenciennes in 1475. He studied at Louvain, and, after a few years in the army, travelled in England and France. He next entered the service of Philip the Good, Duke of Burgundy, whose successor, Charles the Bold, coming to Valenciennes in 1473, to hold a chapter of the Golden Fleece, conferred upon him the honour of knighthood, with the title of Indiciarius of the order.
Chastellain's more important works include
In spite of excessive partiality to the Duke of Burgundy, Chastellain's historical works are valuable for the accurate information they contain. As a poet he was famous among his contemporaries. He was the great master of the school of grands rhétoriqueurs, whose principal characteristics were fondness for the most artificial forms and a profusion of latinisms and graecisms.