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Male John de MORTEYN Click to view John de MORTEYN in the family tree

John de was born about 1240 in Tillsworth and Marston, bedfordshire, England.  John de's father was Eustace (Sir) de MORTEYN and his mother was Hilary SILVEYN.  His paternal grandparents were Eustace (Sir) de MORTEYN and Hillary UNKNOWN; his maternal grandfather was Richard SILVEYN.  He was an only child.  He died in 1284.


John de's family with Constance MERSTON

They had a daughter named Jane.