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+---- Jacob Jan Gerritsz. ca 1450-1500/ +---- Jan Jacobsz. ca 1475- | +---- Dirckje Jansdr. † +---- Anthonis Jansz. ca 1505- | +---- Claesgen Gerritsdr. †1565 ==== Anna Thonisdr. Ruijchrok | +---- Harper Dircksz. ca 1485-1542/ +---- Machtelt Harpertsdr. ca 1510- +---- ? ? |