| Father | William "Longespée" Longespée (Plantagenet) Prince of England & 3rd Earl of Salisbury (1173 - 1226) |
| Mother | Ela fitz-Patrick Salisbury Countess of Salisbury (1191 - 1261) |
| Sibling | Stephen Longspee (Plantagenet) ( - ) |
| Sibling | William 2nd Longespée Earl of Salisbury ( - ) |
| Sibling | Richard Longespee Canon Of SALISBURY (1214 - ) |
| Sibling | Ela Longespee (1217 - 1297) |
| Sibling | Nicholas Longespee (1218 - 1297) |
| Sibling | Petronella Longespee (1209 - ) |
| Sibling | Isabel Longespee (1208 - 1248) |
| Sibling | Ida (Idonea) Longespee (1222 - ) |