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Male William I Of Holland Count Click to view William I Of Holland Count in the family tree

William I was born about 1174 in , , , Holland.  William I's father was Florenz III Of Holland Count and his mother was Ada De Huntingdon.  His paternal grandparents were Dietrich VI Of Holland Count and Sophia Von Rheineck; his maternal grandparents were Henry Of Huntingdon Earl and Ada (Adelaide) De Warenne. He had two sisters named Margretha and Mechtild.  He died on July 2nd, 1222.  He was buried in 1222.


William I's family with Adelaide Of Guelders

‌William I and Adelaide were married in a religious ceremony in 1199.  They had a son named Florenz IV.

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