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Male William I Longespee Click to view William I Longespee in the family tree

William I was born before 1173 in England.  William I's father was Henry Plantagenet and his mother was Rosamond De Clifford.  His paternal grandparents were Geoffrey Plantagenet and Matilda UNKNOWN; his maternal grandparents were Walter I Fitzrichard De Clifford and Margaret De Toeni. He had a half-brother and two half-sisters, named John, Matilda Maud Of and Eleanor Princess Of.  He died in Salisbury Castle, Wiltshire, England.  He was buried in Salisbury Cathedral, Wiltshire, England.


William I's family with Ela Fitzpatrick

‌William I and Ela were married in a religious ceremony in 1198 in Salisbury, Wiltshire, England.  They had two sons and a daughter, named William II, Stephen De and Ida Idonea.

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