1216 - 1279 (63 years)
| suo jure 6th Lady of Glamorgan Eleanor de Clare | |
| B: | 3 Oct 1292 |
| Glamorgan, Wales | |
| D: | 30 Jun 1337 |
| Tewkesbury, Gloucestershire, England | |
| 1st Lord Despenser and Lord of Glamorgan Hugh Despenser, the Younger | |
| B: | 1 May 1286 |
| Gloucestershire, England | |
| M: | May 1306 |
| Westminster, Middlesex, England | |
| D: | 24 Nov 1326 |
 | Elizabeth de Clare 1295-1360 |
| Elizabeth de Clare | |
| B: | 16 Sep 1295 |
| Tewkesbury, Gloucestershire, England | |
| D: | 4 Nov 1360 |
| Ware, Hertfordshire, England | |
 | Theobold de Verdun 1278-1316 |
| Theobold de Verdun | |
| B: | 8 Sep 1278 |
| Cheadle, Staffordshire, England | |
| D: | 27 Jul 1316 |
| Alton, Staffordshire, England | |
 | Countess of Cornwall Margaret de Clare 1292-1342 |
| Countess of Cornwall Margaret de Clare | |
| B: | 12 Oct 1292 |
| Tewkesbury, Gloucestershire, England | |
| D: | 9 Apr 1342 |
| Badlesmere, Kent, England | |
| 1st Earl of Gloucester Hugh de Audley, II | |
| B: | 1289 |
| Oxfordshire, England | |
| M: | 28 Apr 1317 |
| D: | 10 Nov 1347 |
| Tonbridge, Kent, England | |
 | 1st Earl of Cornwall Piers Gaveston Abt 1284-1312 |
| 1st Earl of Cornwall Piers Gaveston | |
| B: | Abt 1284 |
| France | |
| M: | Oct 1307 |
| D: | 19 Jun 1312 |
| Princess of England Joan of Acre Plantagenet | |
| B: | 1272 |
| Israel | |
| D: | 23 Apr 1307 |
| Clare, Suffolk, England | |
| 7th Earl of Gloucester, Earl of Clare, Earl of Hertford Lord Gilbert de Clare, IV | |
| B: | 2 Sep 1243 |
| Christchurch, Hampshire, England | |
| M: | 30 Apr 1290 |
| Westminster, London, England | |
| D: | 7 Dec 1298 |
| Monmouthshire, Wales | |
 | Queen Consort of England Eleanor Castile 1241-1290 |
| Queen Consort of England Eleanor Castile | |
| B: | 1241 |
| Burgos, Castilla-Leon, Spain | |
| D: | 29 Nov 1290 |
| Lincolnshire, England | |
 | King of England Edward Plantagenet, I 1239-1307 |
| King of England Edward Plantagenet, I | |
| B: | 17 Jun 1239 |
| Westminster, London, England | |
| M: | 18 Oct 1254 |
| Burgos, Burgos, Castilla-Leon, Spain | |
| D: | 7 Jul 1307 |
| Cumberland, England | |
| Johanna de Dammartin de Ponthieu 1216-1279 |
| Johanna de Dammartin de Ponthieu | |
| B: | 1216 |
| Dammartin, Haute-Marne, Champagne-Ardenne, France | |
| D: | 15 Mar 1279 |
| Abbéville, Essonne, Île-de-France, France | |
 | Count of Aumale and King of Castile, Palencia, Valladolid, and Burgos Saint Ferdinand Castile, III 1201-1252 |
| Count of Aumale and King of Castile, Palencia, Valladolid, and Burgos Saint Ferdinand Castile, III | |
| B: | 5 Aug 1201 |
| Leon, Castilla-Leon, Spain | |
| M: | 1237 |
| Burgos, Burgos, Castilla-Leon, Spain | |
| D: | 30 May 1252 |
| Sevilla, Seville, Andalucia, Spain | |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
