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Female Joan de CORNWALL Click to view Joan de CORNWALL in the family tree

Joan de was born in 1285 in Thunnock, Lancashire, England.  Joan de's father was Richard de CORNWALL and her mother was Joan  ST. OWEN.  Her paternal grandparents were Richard PLANTAGENET and Joan de VALLETORT; her maternal grandfather was John  ST. OWEN.  She was an only child.  She died at the age of 56 in 1341.


Joan de's family with John I HOWARD

They had a son named John II.