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Female Katherine de Grandeson Click to view Katherine de Grandeson in the family tree

Katherine was born in 1304 in Ashford, Hertfordshire, England.  Katherine's father was William de Grandison , Sir and her mother was Sybil de Tregoz.  Her paternal grandfather was Pierre I Sire de Grandson and her paternal grandmother is Agnes de Neuchatel; her maternal grandparents were John de Tregoz , Sir, Baron Tregoz and Mable FitzWarren. She had a brother and two sisters, named Piers, Agnes and Mabilla.  She was the youngest of the four children.  She died at the age of 45 on November 26th, 1349 in Bisham, Berkshire, England.


Katherine's family with William I de Montacute , Earl of Salisbury 1st

They had two sons and two daughters, named John, William II, Philippa and Sibyl.

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