
| Isabel FitzRobert Countess of Gloucester | |
| B: | Abt 1173 |
| Tewksbury, Gloucestershire, England | |
| D: | 14 Oct 1217 |
| , , ENGLAND, Great Britain | |
| John I "Lackland" Plantagenet King of England | |
| B: | 24 Dec 1166 |
| Kings Manor House, Oxford, Oxfordshire, England | |
| M: | 29 Aug 1189 |
| 1st husband 1st wife - Divorced 1199 | |
| D: | 19 Oct 1216 |
| Newark Castle, Nottinghamshire, England | |