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Male William Sinclair Click to view William Sinclair in the family tree

William was born about 1230 in Rosslyn Castle, Roslin, Midlothian, Scotland.  William's father is Robert De St Clair and his mother is Eleanor De Dreux.  His maternal grandparents were Robert II De Dreux and YolanDe De Coucy.  He was an only child.  He died in 1297 in Tower of London, London, England.


William's first family with Matilda of Orkney

‌William and Matilda of were married in a religious ceremony before 1263.  They had a daughter named Annabel.


William's second family with Amicia Sinclair

They had a son named Henry.

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