Earl of Derby, Earl of Leicester, Lord of Beaufort and Nogent, Earl of Lancaster, Earl of Lincoln, 1st Duke of Lancaster, Earl of Moray Sir Henry Grosmont of Derby Plantagenet

1314 - 1361  (~ 62 years)

Earl of Derby, Earl of Leicester, Lord of Beaufort and Nogent, Earl of Lancaster, Earl of Lincoln, 1st Duke of Lancaster, Earl of Moray Sir Henry Grosmont of Derby Plantagenet 1314 - 1361 Isabella de Beaumont 1320 - 1336 Countess of Leicester Matilda Plantagenet 1339 - 1362 Countess of Derby Blanche of Lancaster 1341 - 1369 John de Gaunt 1340 - 1398 Lady Companion, Order of the Garter Philippa of Lancaster 1360 - 1415 João de Aviz 1357 - 1433 Lady Companion, Order of the Garter Elizabeth Plantagenet 1364 - 1425 John of Lancaster 1364 - Bef 1366 Edward Plantagenet 1365 - Abt 1365 John Plantagenet Bef 1366 - Abt 1366 Earl of Derby, Earl of Hereford, Earl of Northampton, Duke of Hereford, Earl of Lincoln, Duke of Lancaster, Earl of Leicester, King Henry IV of England Henry Plantagenet, IV 1366 - 1413 Isabel Plantagenet Abt 1368 - Abt 1368 Blanca de Aviz 1388 - 1389 Alfonso de Aviz 1390 - 1400 Reu Duarte I de Portugal Duarte de Aviz, I 1391 - 1438 Duque de Coimbra Pedro de Aviz 1392 - 1449 Duque de Viseu Henrique de Aviz 1394 - 1460 Isabel de Aviz 1397 - 1472 Grand Master of Santiago, Duque de Beja João de Aviz 1400 - 1442 Grand Master of Aviz Ferdinando de Aviz 1402 - 1443