Geertruid Bicker Est 1634 - 7 Jan 1702 Kasteel Assumburg, Heemskerk (1634–1702) Parents Jan Gerritsz. Bicker Agneta de Graeff van Polsbroek Children Isabella Agneta Deutz Jean Deutz Siblings Elisabeth Bicker Wendela Bicker Jacoba Bicker Partners Jean Deutz