Margaretha van der Piet Name:Margaretha van der Piet Gender:female Born:Antwerpen Died: Father: Mother: Marriage: Dirck van Os (1556 - 1615), Amsterdam 1588-01-30 Children: Dirck van Os (1591 - 1668) Francois van Os (1592 - ?) References Primary sources Stadsarchief Amsterdam, Amsterdam: DTB-registers (toegangsnummer 5001), 762: 107