1st House of Lancaster
Edmund Crouchback (1245 – 1296) 1st Earl of Lancaster
- Edmund Crouchback (1245 – 1296) 1st Earl of Lancaster, 1st Earl of Leicester, son of Henry III. Married firstly Aveline de Forz (1259 – 1274) Countess of Aumale and Lady of Holderness, daughter of William de Forz, 4th Earl of Albemarle and secondly Blanche of Artois (c. 1248 – 1302) daughter of Robert I, Count of Artois and widow of Henry I, King of Navarre. See House of Plantagenet
Children of Edmund Crouchback:
Thomas (1278 – ex.1322) 2nd Earl of Lancaster and Leicester
- Thomas (1278 – ex.1322) 2nd Earl of Lancaster and Leicester, Earl of Derby, jure uxoris Earl of Lincoln and Salisbury. Married Lady Alice de Lacy, suo jure Countess of Lincoln and de jure suo jure Countess of Salisbury (1281 – 1348) (div. c.1318), daughter of Henry [de Lacy], 3rd Earl of Lincoln
Henry (1281 – 1345) 3rd Earl of Lancaster and Leicester
- Henry (1281 – 1345) 3rd Earl of Lancaster and Leicester. Married Maud de Chaworth (1282 – 1322) daughter of Sir Patrick de Chaworth.
Children of Henry, 3rd Earl of Lancaster:
Henry of Grosmont (1300 – 1360) 1st Duke of Lancaster
- Henry of Grosmont (1300 – 1360) 1st Duke of Lancaster, 3rd Earl of Lancaster and Leicester, Earl of Derby and Earl of Lincoln KG. Married Isabel de Beaumont (c. 1320 – 1361) daughter of Henry de Beaumont, Earl of Buchan.
Blanche of Lancaster (1305 – 1380)
- Blanche of Lancaster (1305 – 1380) Married Thomas Wake (1297 – 1349) 2nd Baron Wake of Liddell
Maud of Lancaster (1310 – 1377)
- Maud of Lancaster (1310 – 1377) Married firstly William de Burgh (1312 – 1333) 3rd Earl of Ulster and secondly Ralph de Ufford (d. 1346)
Joan of Lancaster (1312 – 1345)
- Joan of Lancaster (1312 – 1345) Married John de Mowbray (1310 – 1361) 3rd Baron Mowbray
Eleanor of Lancaster (1318 – 1371)
- Eleanor of Lancaster (1318 – 1371) Married firstly John De Beaumont (1313 – 1342) and secondly Richard FitzAlan (c. 1306 – 1376) 10th Earl of Arundel
Mary of Lancaster (1320 – 1362)
- Mary of Lancaster (1320 – 1362) Married Henry de Percy (c. 1321 – 1368) 3rd Baron Percy
Children of Henry of Grosmont, 1st Duke of Lancaster:
Maud of Lancaster (1339 – 1362) Countess of Leicester
- Maud of Lancaster (1339 – 1362) Countess of Leicester. Married William I (1330 – 1389) Duke of Bavaria-Straubing, Count of Holland, Count of Hainaut and Count of Zeeland.
Blanche of Lancaster (1345 – 1369) Countess of Lancaster
- Blanche of Lancaster (1345 – 1369) Countess of Lancaster. Married John of Gaunt (1340 – 1399) 1st Duke of Lancaster, son of Edward III
2nd House of Lancaster
John of Gaunt (1340 – 1399)
- John of Gaunt (1340 – 1399) Earl of Richmond, jure uxoris Earl of Leicester, Earl of Lancaster, Earl of Derby from 1360, 1st Duke of Lancaster from 1362, Duke of Aquitaine from 1390, King of Galicia, King of Castile, King of León from 1372 to 1388, son of Edward III. Married firstly Blanche of Lancaster (1345 – 1369) Countess of Lancaster, daughter of Henry of Grosmont, 1st Duke of Lancaster, secondly Constance of Castile (1354 – 1394) daughter of Peter, King of Castile and León and thirdly Katherine de Roet later Swynford (c. 1350 – 1403) daughter of Sir Paon de Roet. See House of Plantagenet
Children of John of Gaunt and Blanche of Lancaster:
Philippa of Lancaster (1360–1415)
- Philippa of Lancaster (1360–1415) Married John I (1357–1433) King of Portugal
Elizabeth of Lancaster (1364–1426)
- Elizabeth of Lancaster (1364–1426) Married firstlyJohn Hastings (1372–1389) 3rd Earl of Pembroke (annulled 1383), secondly John Holland (1350–1400) 1st Duke of Exeter and thirdly Sir John Cornwall (d. 1443) 1st Baron Fanhope and Milbroke
Henry Bolingbroke (1367–1413) when Duke of Hereford
- Henry Bolingbroke, later Henry IV of England (1367–1413) See below
Children of John of Gaunt and Constance of Castile:
Catherine of Lancaster (1372–1418)
- Catherine of Lancaster (1372–1418) Married Henry III (1379–1406) King of Castile
Children of John of Gaunt and Katherine Swynford (mistress and later wife):
John Beaufort (1373–1410) 1st Earl of Somerset
- John Beaufort (1373–1410) 1st Earl of Somerset, 1st Marquess of Somerset and 1st Marquess of Dorset. Married Margaret Holland (1385 – 1439) daughter of Thomas Holland, 2nd Earl of Kent See House of Beaufort
Cardinal Henry Beaufort (1375–1447)
- Cardinal Henry Beaufort (1375–1447) Bishop of Winchester
Thomas Beaufort (1377–1427) Duke of Exeter
- Thomas Beaufort (1377–1427) Duke of Exeter and Earl of Dorset. Married Margaret Neville (1377–1424) daughter of Sir Thomas Neville, of Hornby
Joan Beaufort (1379–1440)
- Joan Beaufort (1379–1440) Married firstly Robert Ferrers (c. 1373 – 1396) 5th Baron Boteler of Wem and secondly Ralph Neville (c. 1364 – 1425) 1st Earl of Westmoreland.
Henry IV
Henry IV (1367–1413) King of England and of France
- Henry IV (1367–1413) Earl of Derby, Earl of Northampton, Earl of Hereford, Duke of Hereford, 2nd Duke of Lancaster, King of England and of France and Lord of Ireland from 1399. Married firstly Mary de Bohun (1369–1394) daughter of Humphrey de Bohun, 7th Earl of Hereford and secondly Joanna of Navarre (1368–1437) daughter of Charles II, King of Navarre
Children of Henry IV and Mary de Bohun:
- Henry V (1386–1422) King of England and of France and Lord of Ireland. See below
Thomas of Lancaster (1387–1421) Duke of Clarence
- Thomas of Lancaster (1387–1421) Duke of Clarence. Married Margaret Holland (1385 – 1439) daughter of Thomas Holland, 2nd Earl of Kent, widow of his half-uncle, John Beaufort 1st Earl of Somerset. No issue
John of Lancaster (1389–1435) Duke of Bedford
- John of Lancaster (1389–1435) Duke of Bedford. Married firstly Anne of Burgundy (1404 – 1432) daughter of John the Fearless, Duke of Burgundy and secondly Jacquetta of Luxembourg (1415 – 1472) who later married Sir Richard Woodville, daughter of Peter I of Luxembourg, Count of Saint-Pol. (Parents of Elizabeth Woodville (c. 1437 – 1492) wife of Edward IV) No issue
Humphrey of Lancaster (1390–1447) Duke of Gloucester
- Humphrey of Lancaster (1390–1447) Duke of Gloucester, jure uxoris Count of Holland, Zeeland and Hainault. Married firstly to Jacqueline (1401–1436) Countess of Hainaut and Holland daughter of William VI, Count of Hainaut(annulled 1428) and secondly to Eleanor Cobham (d.1450) formerly his mistress, daughter of Sir Reynold de Cobham, de jure 3rd Baron Cobham of Sterborough. No issue
Blanche of England (1392–1409)
- Blanche of England (1392–1409) Married Louis III (1378 – 1436) Elector Palatine
Philippa of England (1394–1430)
- Philippa of England (1394–1430) Married Eric of Pomerania(1381 – 1459) King of Denmark, Norway and Sweden.
Henry V
Henry V (1386–1422) King of England and of France
- Henry V (1386–1422) King of England and of France and Lord of Ireland. Married Catherine of Valois (1401 – 1437) daughter of Charles VI, King of France. She married secondly and secretly Sir Owen Tudor (c. 1400 – 1461) See House of Tudor
Son of Henry V and Catherine of Valois:
Henry VI
Henry VI (1421 –1471) King of England and King of France
- Henry VI (1421 –1471) King of England and Lord of Ireland. from 1422 to 1461 and again from 1470 to 1471, and King of France from 1422 to 1453. Married Margaret of Anjou (1430 – 1482) daughter of René, King of Naples, and Isabella, Duchess of Lorraine.
Son of Henry VI and Margaret of Anjou:
Edward of Westminster (1453 – 1471) Prince of Wales
- Edward of Westminster (1453 – 1471) Prince of Wales. Married Anne Neville (1456 – 1485) daughter and co-heiresses of Richard Neville, 16th Earl of Warwick (the "Kingmaker"). She married as her second husband Richard III. See House of York