John de UPTON 
John de was born about 1227 in Upton, Liskeard, Cornwall, England. John de's father was Hamelin de UPTON. He was an only child. John de is no longer alive.
He had a biological son named Walter.
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Children
Walter UPTON
Walter was born about 1272 in Kimble, Buckinghamshire, England. Walter is no longer alive.