| Adalbert I "the Pious" de Vermandois Born: ABT 920 Died: 9 SEP 988 | |||||
| Heribert III de Vermandois Born: ABT 954 Died: 1015 | |||||
| Gerberga of Lorraine Born: ABT 935 Died: 7 SEP 978 | |||||
| Henry, Lord Percy of Alnwick Born: 6 FEB 1301 Castle Alnwick, Northumberland, England Died: 27 FEB 1352 Warkworth Castle, Alnwick, Northumberland, England | |||||
| Ermengarde de Bar-sur-Seine Born: Died: AFT 1035 | |||||
| Henry IV, Lord Percy of Alnwick Born: 1320 Seamer, North Riding, Yorkshire, England Died: 17 JUN 1368 Warkworth Castle, Alnwick, Northumberland, England | |||||
| ?? Born: Died: | |||||