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Male Wilhelm I Von Holland Click to view Wilhelm I Von Holland in the family tree

Wilhelm I was born in Vlaardingen, Zuid Holland, Netherlands.  Wilhelm I's father was Floris III Holland and his mother was Ada De Huntington.  His paternal grandparents were Dirk VI Holland and Sofie Von Rieneck; his maternal grandparents were Henry Stewart and Ada of Surrey. He had five brothers and seven sisters, named Dirk VII, William I, Floris, Boudewijn, Robert, Ada, Matilda, Margaret, Beatrix, Elisabeth, Hedwig and Agnes.  He died in Vlaardingen, Zuid Holland, Netherlands.


Wilhelm I's first family with Adelheid Von Geldern

‌Wilhelm I and Adelheid were married in a religious ceremony about 1211 in Gelre, Netherlands.  They had three sons and two daughters, named William, Otto, Florens IV, Ada and Richardis.


Wilhelm I's second family with Marie Brabant

‌Wilhelm I and Marie were married in a religious ceremony in July 1220.

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