John de Eleanor of Edward I Courtenay of Isabel de Vere m Castile m 1272-1307 Okehampton ?-1290 ?-1273 Isabella of Elizabeth of Humphrey de Sir Hugh de Eleanor le Edward II m France Rhuddlan m Bohun Courtenay m Despencer 1307-1327 1295-1358 1282-1316 1276-1322 1250-1291 ?-1328 Sir Hugh de Philippa of Edward III Courtenay Agnes St John m Hainault m 1327-1377 Earl of Devon c1275-1340 1328-1369 1275-1340 Margaret de Hugh de Lionel of Elizabeth de Edward, Prince John of Gaunt Blanche of Joan of Kent Bohun of Courtenay, Earl Antwerp m Burgh m of Wales m m ?-1389 Lancaster Powderham of Devon 1338-1368 ?-1363 ?-1376 1311-1391 1303-1377 Philippa Sir Edward de Edmund Emmeline Sir Philip Countess of Henry IV Richard II Courtenay of Ann Wake m Mortimer m Mary de Bohun Dawnay, Lady m Courtenay m Ulster 1399-1413 1377-1399 Godlington c1350-1406 1352-1381 of Devon c1355-1406 1355-1382 c1335-c1372 Edward de Maud de Sir Hugh Maud Sir John Joan Roger Mortimer Eleanor Holland Henry V Catherine of Courtenay, Earl m m m Camoys Courtenay M.P. m Beaumont Courtenay m Champernowne 1374-1398 1370-1405 1413-1422 France of Devon c1367-1455 aft 1358-1425 (d 1467) c1384-1406 c1376-1419 c1357-1419 Margaret Hugh de Sir Hugh Philip Courtenay Richard, Earl of Henry VI Carminow Elizabeth Anne Mortimer Margaret of Courtenay Courtenay of of Powderham m Cambridge 1422-1461 m m Anne Talbot m widow of m Hungerford 1388-1411 Anjou Earl of Devon Boconnoc and Molland, 1385-1415 1470-1471 William 1406-1476 1389-1422 c1427-1471 1404-1463 Bottreaux Richard Thomas de Sir Philip Sir William Plantaganet Cecily Neville, Margaret Elizabeth Courtney Courtenay of Courtenay of Margaret Bonville 3rd Duke of m Duchess of York m Beaufort Hingeston m m Earl of Devon Molland Powderham c1425-1487 York 1415-1495 c1409-1449 c1432-1482 1414-1458 1430-1489 c1428-1485 1411-1460 Edward Courtenay John Courtenay Thomas KG, Sir William Edward IV Elizabeth Earl of Devon Richard III Courtenay Earl of Devon Elizabeth Courtenay of Cecily Cheyne of 1461-1470 m Woodville 1435-1471 m m 1483-1485 Earl of Devon c1459-1509 Courtenay Powderham Pinhoe 1471-1483 c1437-1492 Earldom 1432-1461 (title recreated ?-1511 Forfeited 1485) Elizabeth of Catherine of William Courtenay, Alice Wotton of Henry VII Edward V Edward Courtenay m York York m Earl of Devon m Landrake 1485-1509 1483-1483 ?-1509 1466-1503 1479-1527 1475-1511 ?-1533 Henry Courtenay, Edward Courtenay Henry VIII Elizabeth Grey Gertrude Blount Margaret Trethurffe m Marquess of Exeter m of Landrake m 1509-1547 1505-1519 c1500-1558 1503-1576 1498-1538 ?-bef1556 Edward Courtenay, Earl Henry Courtenay of Devon Peter Courtenay Katherine Reskymer m infant death 1527-1556 c1535-1606 c1546-1576 unmarried & childless Mary Courtenay Richard Spoure m c1572-1647 c1570-1647.