Viscount William de Grandison & Sybil Tregoz 
William de and Sybil were married in a religious ceremony in 1285 in Donyatt,Somersetshire,England.1 They had two sons and three daughters, named Peter de, John de, Mabilia de, Agnes de and Katherine.
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Personal Details
Viscount William de Grandison
William de was born about 1255 in ,Neuchâtel,Neuchâtel Canton,Switzerland.1 He died on June 27th, 1335 in Gascony,France.1
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Children
Viscount Peter de Grandison
Peter de was born in 1287 in <,Ashperton,Hereford,England>.1 He died at the age of 71 on August 10th, 1358.1
Agnes de Grandison Viscountess of Wormegay
Agnes de was born about 1289 in ,Bletsoe,Bedford,England.2 She died on December 4th, 1357 in ,Ruskington,Lincoln,England. She was buried on December 11th, 1357 in ,Ruskington,Lincoln,England.2 2
John de Grandison
John de was born in 1299 in <,Ashperton,Hereford,England>.1 He died at the age of 60 in 1359.1
Katherine Grandison
Katherine was born about 1304 in Ashford,Hertfordshire,England.1 She died on November 23rd, 1349 in Bisham,Berkshire,England. She was buried in ,Bisham,Berkshire,England.1 1
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