Henry Grosment Plantagenet I Earl of Lancaster 
He had a biological daughter named Blanche Plantagenet of.
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Personal Details
Henry Grosment Plantagenet I Earl of Lancaster
Henry Grosment Plantagenet I Earl of was born in 1300 in Grosmont Castle, Monmouthshire, England. He died in Leicester Castle.
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Children
Blanche Plantagenet of Lancaster
Blanche Plantagenet of was born on March 25th, 1335. She died at the age of 34 on September 12th, 1369 in Bolingbroke Castle, Lincoln, England.
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