5th Countess of Ulster Philippa of Clarence
1355 - 1382 (26 years)(
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- 1 5th Countess of Ulster Philippa of Clarence [1] b. 16 Aug 1355 d. 5 Jan 1382
- Edmund de Mortimer b. 1 Feb 1352 d. 27 Dec 1381
- 2 Elizabeth Mortimer [1.1] b. 12 Feb 1371 d. 20 Apr 1417
- Henry Percy b. 10 Mar 1364 d. 21 Jul 1403
- 3 2nd Earl Northumberland Henry Percy [1.1.1] b. 3 Feb 1391 d. 22 May 1455
- Countess of Northumberland Eleanor De Neville b. 1395 d. 1463
- 4 Ralph Percy [1.1.1.1] b. 11 Aug 1425 d. 25 Apr 1498
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- 4 Ralph Percy [1.1.1.1]
- 3 2nd Earl Northumberland Henry Percy [1.1.1]
- 2 4th Earl Of March Roger Mortimer [1.2] b. 11 Apr 1374 d. 20 Jul 1398
- Eleanor Holland b. 13 Oct 1370 d. 18 Oct 1405
- 3 Countess of Cambridge Anne Mortimer [1.2.1] b. 27 Dec 1388 d. 22 Sep 1411
- 3rd Earl of Cambridge Richard of Conisbrough b. 20 Jul 1385 d. 5 Aug 1415
- 4 3rd Duke Of York Richard Plantagenet [1.2.1.1] b. 21 Sep 1411 d. 30 Dec 1460
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- 4 3rd Duke Of York Richard Plantagenet [1.2.1.1]
- 3 Countess of Cambridge Anne Mortimer [1.2.1]
- 2 Elizabeth Mortimer [1.1]