The Cambridge University Heraldic & Genealogical Society
1355 - 1378 (22 years)
| Henry (Percy), 3rd Earl of Northumberland | |
| B: | 25 July 1421 |
| D: | 29 March 1461 |
| Towton, Yorkshire, England | |
| Eleanor (Poynings), de jure suo jure Baroness Poynings circa 1422-1484 |
| Eleanor (Poynings), de jure suo jure Baroness Poynings | |
| B: | circa 1422 |
| M: | On or Before 25 June 1435 |
| D: | Feb. 1483/84 |
Thomas (Percy), 1st Baron Egremont 1422-1460 |
| Thomas (Percy), 1st Baron Egremont | |
| B: | 29 Nov. 1422 |
| Leconfield, Yorkshire, England | |
| D: | 10 July 1460 |
| Northampton, Northamptonshire, England | |
| Hon. Sir Ralph Percy 1425-1464 |
| Hon. Sir Ralph Percy | |
| B: | 1425 |
| D: | 25 April 1464 |
| Hedgeley Moor, Eglingham, Northumberland, England | |
| Lady Katherine Percy 1423- |
| Lady Katherine Percy | |
| B: | 28 May 1423 |
| Edmund (Grey), 1st Earl of Kent | |
| M: | Before Jan. 1458/59 |
| D: | 22 May 1490 |
| Henry (Percy), 2nd Earl of Northumberland | |
| B: | 3 Feb. 1392/93 |
| D: | 22 May 1455 |
| St. Albans, Hertfordshire, England | |
| Lady Eleanor Neville | |
| M: | After Oct. 1414 |
| Berwick, Northumberland, England | |
| Lady Elizabeth Mortimer 1371- |
| Lady Elizabeth Mortimer | |
| B: | 12 Feb. 1370/71 |
| Usk, Monmouthshire, Wales | |
| Sir Henry Percy, styled Lord Percy | |
| B: | 20 May 1364 |
 | Richard (Plantagenet), 3rd Duke of York 1411-1460 |
| Richard (Plantagenet), 3rd Duke of York | |
| B: | 22 Sept. 1411 |
| D: | 30 Dec. 1460 |
| Sandal Magna, Wakefield, Yorkshire, England | |
 | Lady Cecily Neville 1415-1495 |
| Lady Cecily Neville | |
| B: | 3 May 1415 |
| M: | 1429 |
| D: | June 1495 |
| Lady Isabel (Plantagenet), of Cambridge | |
| D: | 2 Oct. 1484 |
| Henry (Bourchier), 1st Earl of Essex circa 1404-1483 |
| Henry (Bourchier), 1st Earl of Essex | |
| B: | circa 1404 |
| M: | Before 25 April 1426 |
| D: | 4 April 1483 |
| Lady Anne Mortimer 1390-1411 |
| Lady Anne Mortimer | |
| B: | 27 Dec. 1390 |
| D: | Sept. 1411 |
 | Richard (Plantagenet), of Conisburgh, 3rd Earl of Cambridge circa 1375-1415 |
| Richard (Plantagenet), of Conisburgh, 3rd Earl of Cambridge | |
| B: | circa 1375 |
| Conisbrough Castle, Conisbrough, Yorkshire, England | |
| M: | circa 1408 |
| D: | 5 Aug. 1415 |
| Southampton, Hampshire, England | |
 | Edmund (Mortimer), 5th Earl of March 1391-1425 |
| Edmund (Mortimer), 5th Earl of March | |
| B: | 6 Nov. 1391 |
| D: | 19 Jan. 1424/25 |
| Lady Anne Stafford -1432 |
| Lady Anne Stafford | |
| D: | 20 Sept. 1432 |
| Roger Mortimer -circa 1412 |
| Roger Mortimer | |
| D: | circa 1412 |
| Eleanor Mortimer circa 1395- |
| Eleanor Mortimer | |
| B: | circa 1395 |
| Edward (Courtenay), Lord Courtenay | |
| M: | circa 1408 |
| D: | 1 May 1418 |
| Roger (Mortimer), 4th Earl of March 1373-1398 |
| Roger (Mortimer), 4th Earl of March | |
| B: | 1 Sept. 1373 |
| D: | 20 July 1398 |
| Lady Eleanora Holand -1405 |
| Lady Eleanora Holand | |
| D: | 23 Oct. 1405 |
| Lady Philippe Mortimer 1375-1400 |
| Lady Philippe Mortimer | |
| B: | 21 Nov. 1375 |
| Ludlow, Shropshire, England | |
| D: | 25 Sept. 1400 |
| Hon. Edmund Mortimer 1376-1409 |
| Hon. Edmund Mortimer | |
| B: | 9 Nov. 1376 |
| Ludlow, Shropshire, England | |
| D: | 1409 |
| Harlech Castle, Harlech, Gwynedd, Wales | |
| Philippa (Plantagenet), suo jure Countess of Ulster | |
| B: | 16 Aug. 1355 |
| Eltham, Kent, England | |
| D: | 5 Jan. 1377/78 |
| Edmund (Mortimer), 3rd Earl of March | |
| D: | 27 Dec. 1381 |
| Dominican Friary, Cork, Co. Cork, Ireland | |
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