William Courtenay, 1st Earl of Devon
1475 - 1511 (36 years)
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| Edward Courtenay 1497-1502 |
| Edward Courtenay | |
| B: | 1497 |
| D: | 12 Jul 1502 |
| Henry Courtenay, 1st Marquess of Exeter 1498-1538 |
| Henry Courtenay, 1st Marquess of Exeter | |
| B: | c. 1498 |
| D: | 9 Dec 1538 |
 | Margaret Courtenay, Baroness Herbert 1499-1526 |
| Margaret Courtenay, Baroness Herbert | |
| B: | c. 1499 |
| D: | bef. 1526 |
| William Courtenay, 1st Earl of Devon 1475-1511 |
| William Courtenay, 1st Earl of Devon | |
| B: | 1475 |
| D: | 9 Jun 1511 |
| Catherine of York, Countess of Devon 1479-1527 |
| Catherine of York, Countess of Devon | |
| B: | 14 Aug 1479 |
| Eltham Palace, Greenwich, Kent, England | |
| D: | 15 Nov 1527 |
| Tiverton Castle, Devon, England | |