John de Ros married Margery le Despencer , daughter and heiress of Philip le Despencer , 2nd Baron le Despencer , but had no issue by her .
Head entity: margery le despencer Q6760316 4 5 6
Tail entity: philip le despencer, 2nd baron le despencer Q7184614 12 13 14 15 16 17 18 19
Relation (head \u2192 tail): P22
Inverse relation (tail \u2192 head): P40