Alice de Clare of Tonbridge was born circa 1115 to Richard de Clare, 1st Earl of Hertford (1094-1136) and Alice de Gernon (1102-1129) and died after 1148 of unspecified causes. She married William de Percy (1112-c1175) 1136 JL . She married Cadwaladr ap Gruffydd (c1100-1172) .
Children
| Name | Birth | Death | Joined with |
| Richard de Percy | |||
| Walter de Percy | |||
| William de Percy | |||
| Emma de Percy | |||
| Agnes de Percy (-1203) | Alnwick | 1203 | Jocelin de Louvain (c1126-1180) |
| Matilda de Percy | |||
| Alan de Percy | |||
| Alice de Percy | |||
| Name | Birth | Death | Joined with |
| Cunedda ap Cadwaladr | |||
| Rhicert ap Cadwaladr | |||
| Ralph ap Cadwaladr | |||
Footnotes (including sources)
| ‡ General |