| Gilbert de CLARE Born: ABT 1183 Hertford, Hertfordshire, ENG Died: 25 OCT 1230 Penrose, Brittany, France | |||||
| Richard de CLARE Born: 4 AUG 1222 Gloucester, ENG Died: 15 JUL 1262 Canterbury, Kent, ENG; or Ashenfield, Waltham, ENG | |||||
| Isabel MARSHALL Born: ABT 1203 ?; of Pembroke, Pembrokeshire, Wales Died: 17 JAN 1239/1240 Berkhampsted, ENG | |||||
| (Mother) Born: Died: | |||||
| Henry, Lord Percy of Alnwick Born: 6 FEB 1301 Castle Alnwick, Northumberland, England Died: 27 FEB 1352 Warkworth Castle, Alnwick, Northumberland, England | |||||
| Iodine de Clifford Born: ABT 1300 Castle Appleby, Westmorland, England Died: 24 AUG 1365 Castle Alnwick, Northumberland, England | |||||
| Maud de LACY or BURGH Born: 4 AUG 1222 Lincoln, Lincoln, ENG Died: BEF 10 MAR 1288/1289 | |||||