| Henry De Percy Born: ABT 1320 Alnwick, Northumberland, England Died: 18 MAY 1368 Warkworth Castle, Alnwick, Northumberland, England | |||||
| Henry De Percy Born: 10 NOV 1341 Warkworth Castle, Alnwick, Northumberland, England Died: 19 FEB 1406/1407 | |||||
| Mary Plantagenet Born: ABT 1320 Grismond Castle, Monmouth, Monmouthshire, England Died: 1 SEP 1362 | |||||
| Ralph De Percy Born: ABT 1368 Died: 1399 | |||||
| Margaret De Neville Born: 12 FEB 1340/1341 Raby, Staindrop, Durham, England Died: 12 MAY 1372 Warkworth Castle, Alnwick, Northumberland, England | |||||