| Sir Gilbert De Clare |
| Sir Gilbert De Clare | |
| B: | 2 Sep 1243 |
| D: | 7 Dec 1295 |
| Monmouth Castle, Monmouth, Monmouth, Wales, United Kingdom | |
| Joan Plantagenet |
| Joan Plantagenet | |
| B: | Abt Apr 1272 |
| Acre, Holy Land, Jerusalem, `Abbasiya, , HaMerkaz, Israel | |
| M: | 30 Apr 1290 |
| London, Greater London, England, United Kingdom | |
| D: | 23 Apr 1307 |
| Clare, Suffolk, England, United Kingdom | |
| Lord of Thomond Thomas De Clare |
| Lord of Thomond Thomas De Clare | |
| B: | 1245 |
| D: | Yes, date unknown |
| Juliane De Windsor |
| Juliane De Windsor | |
| M: | 1275 |
| D: | 1300 |
| Maude De Lacy |
| Maude De Lacy | |
| D: | 1289 |
| Earl of Gloucester Richard De Clare |
| Earl of Gloucester Richard De Clare | |
| B: | 4 Aug 1222 |
| M: | 25 Jan 1237 |
| D: | 15 Jul 1262 |
| Ashenfield Manor, Waltham, Canterbury, Kent, England, United Kingdom | |
| Earl of Lincoln John De Lacy | |
| D: | 1240 |