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Female Sibyl de Tregoz Click to view Sibyl de Tregoz in the family tree

Sibyl de was born about 1271 in Ewyas Harold, Herefordshire, England.  Sibyl de's father was John 1st Baron de Tregoz , Sir and her mother was Mabel FitzWarin.  Her paternal grandparents were Robert II de Tregoz , Baron of Ewyas and Juliane de Cantelou; her maternal grandparents were Fulk IV FitzWarin , Sir and Constance de Toeni. She had a sister named Clarice de.  She was the younger of the two children.  She died on October 21st, 1334 in Dore Abbey, Sussex, England.


Sibyl de's family with William 1st Baron de Grandison , Sir

‌Sibyl de and William 1st Baron de were married in a religious ceremony about 1286 in Donyatt, Somerset, England.  They had a son and two daughters, named Piers 2nd Baron de, Mabel de and Katherine de.

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