Willem Cornelisz. Duyster was born and worked in Amsterdam. Because of the loss of the city’s guild records, his early career remains mysterious. He may have trained with Pieter Codde, and it is certain that they knew each other, as in 1625 Codde hit Duyster in the face with a pitcher during a party. Duyster’s oeuvre shows the influence of painters like Dirck Hals, Anthonie Palamedesz., Jacob van Velsen and Thomas de Keyser. He was chiefly a genre painter, specialising in merry companies and military scenes.