Netherlandish painter, father of Pieter de Grebber. He was the pupil of Jacob Savery I. From c. 1600, he was active in Haarlem as a successful portraitist. He was a member of the Guild of Saint Luke, for which he held a number of offices. Several pupils assisted him in his workshop: his son Pieter and daughter Maria, as well as Judith Leyster and Pieter Saenredam. He remained an important figure in Haarlem until his death. //