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- [S3] Geni World Family Tree, https://www.myheritage.com/research/record-40000-171677571/katherine-de-st-pierre-in-geni-world-family-tree.
Katherine de St. Pierre Gender: Female Alias name: Catherine de St. Peter, de Thornton Birth: Circa 1266 - Shocklach, Cheshire, England Marriage: Spouse: William de Venables, Knight - Before 1292 Death: 1290 - Bradwell, Cheshire, England Father: Urien de St. Pierre, Knight Mother: Idonea verch Dafydd Husbands: William de Venables, Knight, Randolph Peter de Thornton Children: Randle de Thornton, Peter Pierce Thornton, Sir, 1st Baron of Cantilupe, Nicholas Thornton, Catherine de Venables, William de Venables Siblings: Joan de Saint Pierre, John de Saint Pierre
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