| HUSBAND Gilbert "The Red Earl" DE CLARE890 |
| | Birth | 2 September 1243 | Christchurch, Hampshire, England890 |
| Death | 7 December 1295 | Monmouth Castle, Monmouthshire, Wales890 |
| Title | | 6th Earl of Hertford; England890 |
| Title | | 7th Earl of Gloucester; England890 |
| Burial | | Tewkesbury Abbey, Tewkesbury, Gloucestershire, England890 |
| Marriage | 30 April 1290 | France890 |
| WIFE Joan of Acre 895 |
| | Birth | April 1272 | Acre, Kingdom of Acre895 |
| Death | 23 April 1307 | possibly during childbirth; Clare Castle, Clare, Suffolk, England895 |
| Title | | Countess of Gloucester & Hertford; England895 |
| Father | King Edward I "Hammer of the Scots" |
| Mother | Queen Eleanor of CASTILE "The Hardy / The Faithful" |
| CHILDREN |
F | Baroness Eleanor DE CLARE3024 |
| | Birth | 3 October 1292 | Caerphilly Castle, Caerphilly, Glamorgan, Wales3024 |
| Death | 30 June 1337 | Gloucestershire, England3024 |
| Title | | Baroness Despenser; England3024 |
| Burial | | Tewkesbury Abbey, Tewkesbury, Gloucestershire, England3024 |
| Marriage | May 1306 | Lord Hugh "The Younger" LE DESPENCER; Westminster, Middlesex, England3025 |
F | Countess Margaret DE CLARE887,891 |
| | Birth | 12 October 1293 | Tewkesbury, Gloucestershire, England887,891 |
| Death | 9 April 1342 | Badlesmere, Kent, England887,891 |
| Title | | Countess of Gloucester; England887,891 |
| Burial | | Tonbridge Priory, Tonbridge, Kent, England887,891 |
| Title | | Countess of Cornwall; England887,891 |
| Marriage | 28 April 1317 | Earl Hugh DE AUDLEY; Windsor, Berkshire, England884,888 |