Earl of Ulster Earl of Ulster John de Burgh
1286 - 1313 (27 years)
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| Philippa of Clarence | |
| B: | 16 Aug 1355 |
| Eltham Palace | |
| D: | 19 Jul 1415 |
| 3rd Earl of March, Earl of Ulster 3rd Earl of March, Earl of Ulster Edmund Mortimer | |
| B: | 01 Feb 1352 |
| Langoed, Breconshire, Wales | |
| M: | 1368 |
| D: | 27 Dec 1381 |
| Dominican Priory, Cork | |
| John of Portugal, I | |
| B: | 11 Apr 1357 |
| D: | Yes, date unknown |
| Elizabeth de Burgh | |
| B: | 06 Jul 1332 |
| D: | 10 Dec 1363 |
| Dublin, Ireland | |
| Lionel Plantagenet of Antwerp | |
| B: | 29 Nov 1338 |
| Antwerp, Belgium | |
| M: | 09 Sep 1342 |
| Tower of London, London, England | |
| D: | 17 Oct 1368 |
| Dublin, Ireland | |
| Thomas de Burgh | |
| D: | Yes, date unknown |
| Earl Earl William de Burgh | |
| B: | 1312 |
| D: | Yes, date unknown |
| Maud Lancaster | |
| B: | 1310 |
| M: | 09 Sep 1342 |
| Tower of London, London, England | |
| D: | Yes, date unknown |
| Earl of Ulster Earl of Ulster John de Burgh | |
| B: | 1286 |
| Ulster, Ireland | |
| D: | 18 Jun 1313 |
| Elizabeth de Clare | |
| B: | 16 Sep 1295 |
| Tewkesbury, Gloucester, England | |
| D: | 04 Nov 1360 |