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Male William (The Seemly) de Sinclair (William de Saint Clair) Click to view William (The Seemly) de Sinclair in the family tree

William, known as The Seemly, was born in 1145 in Rosslyn Castle, Rosslyn, Midlothian, Scotland.1   The Seemly's father was Henry de Saint Clair and his mother was Margaret Grathenay.  His paternal grandparents were Henry de Saint Clair and Rosabel Forteith.  He was an only child.

Family Details of The Seemly's family with Agnes de Dunbar

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