| Hugh van Courtenay Devon *1389-†1422 4. Earl of Devon |
| Anne Talbot *1390-†1440 |
| John Beaufort *1371-†1410 earl of Somerset, Marquess of Dorset |
| Margaretha Holland *1385-†1439 |
| Thomas van Courtenay Devon *1414-†1457 5. Earl of Devon |
| Margareth Beaufort *1405-†1460 |
| Henry van Courtenay Devon *1435-†1468 lord of Topsham |