| Father | Lord William COURTENAY II (1451 - 1512) |
| Mother | Cecily Elizabeth CHENEY (1455 - 1511) |
| Sibling | Elizabeth COURTENAY (1470 - 1518) |
| Sibling | James COURTENAY (1479 - 1572) |
| Sibling | Piers COURTENAY (1481 - 1508) |
| Sibling | Amy COURTENAY (1481 - ) |
| Sibling | Margaret COURTENAY (1481 - ) |
| Sibling | Joan COURTENAY (1483 - 1566) |
| Sibling | Margaret COURTENAY (1485 - 1535) |
| Sibling | Sir William COURTENAY 1st Earl of Devon, Lord of Powderham (1485 - 1535) |
| Sibling | Anne COURTENAY (1485 - ) |
| Sibling | Edward COURTENAY (1487 - ) |
| Sibling | Joan COURTENAY (1489 - ) |
| Sibling | Mary COURTENAY (1490 - ) |
| Sibling | Cecily COURTENAY (1491 - ) |
| Sibling | Eleanor COURTENAY (1500 - 1535) |
| Sibling | Peter COURTENAY (1505 - 1552) |