| William Marshall Born: 1146 Pembroke, Pembrokeshire, Wales Died: 14 MAY 1219 Caversham Manor, England | |||||
| Isabel Marshall Born: 9 OCT 1200 Pembroke Castle, Wales Died: 17 JAN 1240 Berkhamsted Castle, Hertfordshire, England | |||||
| Isabel FitzGilbert de Clare Born: 1172 Pembroke, Wales Died: 1220 Pembroke, Wales | |||||