1. | Isabel Duchess Lancaster Beaumont was born in 1315 in Longborough Castle, Leicestershire, England; died on 24 Mar 1361 in Leicester Castle, Leicestershire, England. Family/Spouse: Henry of Grosmont Earl of Derby and Leicester 1st Duke Lancaster Plantagenet. Henry (son of Henry ( 3rd Earl of Lancaster) Plantagenet) was born on 1300 or 1310 in Grosmont Castle, Grosmont, Monmouthshire, England; died on 24 Mar 1361 in Leicester Castle, Leicestershire, England. [Group Sheet] [Family Chart] Children:
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