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Male Sir John St. John Click to view Sir John St. John in the family tree

John was born in 1305 in Ffanmon, Glamorgan.  John's father was Alexander St. John and his mother was Elizabeth Umphreyville.  His paternal grandparents were Sir John St. John and Beatrice; his maternal grandfather was Sir Henry Umphreyville.  He was an only child.


John's family with Isabel

They had a son named Oliver.

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