1312 - 1333 (20 Jahre)
 | Philippa Mortimer 1375-1401 |
| Philippa Mortimer | |
| *: | 1375 |
| +: | 1401 |
 | Richard FitzAlan, 11. Earl of Arundel 1346-1397 |
| Richard FitzAlan, 11. Earl of Arundel | |
| *: | 1346 |
| oo: | 1390 |
| +: | 21 Sep 1397 |
| Philippa of Clarence (Plantagenêt), 5. Countess of Ulster | |
| *: | 16 Aug 1355 |
| +: | 5 Jan 1382 |
| Graf Edmund Mortimer, 3. Earl of March 1352-1381 |
| Graf Edmund Mortimer, 3. Earl of March | |
| *: | 1 Feb 1352 |
| oo: | 1368 |
| +: | 27 Dez 1381 |
| Cork | |
| Gräfin Elizabeth de Burgh, 4. Countess of Ulster | |
| *: | 6 Jul 1332 |
| Carrickfergus Castle | |
| +: | 10 Dez 1363 |
| Dublin, Irland | |
| Herzog Lionel von Antwerpen (Plantagenêt) | |
| *: | 29 Nov 1338 |
| Antwerpen | |
| oo: | 15 Aug 1342 |
| Tower of London | |
| +: | 17 Okt 1368 |
| Alba, Italien | |
|
| William von Burgh, 3. Earl of Ulster 1312-1333 |
| William von Burgh, 3. Earl of Ulster | |
| *: | 17 Sep 1312 |
| +: | 6 Jun 1333 |
| Belfast | |
| Matilda (Maud) von Lancaster 1310-1377 |
| Matilda (Maud) von Lancaster | |
| *: | cir 1310 |
| oo: | 1327 |
| +: | 5 Mai 1377 |
| Bruisyard | |
