ii. John Plantagenet, 3rd Earl of Kent, 1330–1352, died without issue II. Edmund Crouchback, 1st Earl of Lancaster, 1245–1296, had 3 sons; a. Thomas Plantagenet, 2nd Earl of Lancaster, 1278–1322, died without issue b. Henry, 3rd Earl of Lancaster, 1281–1345, had 1 son; i. Henry of Grosmont, 1st Duke of Lancaster, 1310–1361, died without male issue, 2 daughters Maud, Countess of Leicester, 1339–1362, died without issue Blanche of Lancaster, married John of Gaunt and had 1 son and two daughters To House of Lancaster c. John of Beaufort, Lord of Beaufort, 1286–1327, died without issue III. Richard of England, 1247–1256, died young IV. John of England, 1250–1256, died young V. William of England, 1251–1256, died young VI. Henry of England, 1256–1257, died young B. Richard, 1st Earl of Cornwall, 1209–1272, had 5 sons; I. John of Cornwall, 1232–1233, died in infancy II. Henry of Almain, 1235–1271, died without issue III. Nicholas of Cornwall, 1240–1240, died in infancy IV. Richard of Cornwall, 1246–1246, died in infancy V. Edmund, 2nd Earl of Cornwall, 1249–1300, died without issue House of Lancaster 4. John of Gaunt, 1st Duke of Lancaster, 1340–1399, had 4 sons; A. John of Lancaster, 1362–1365, died in infancy B. Edward Plantagenet, 1365–1368, died in infancy C. John Plantagenet, 1366–1367, died in infancy D. Henry IV of England, 1366–1413, had 5 sons; I. Edward Plantagenet, 1382–1382, died in infancy II. Henry V of England, 1386–1422, had 1 son; a. Henry VI of England, 1421–1471, had 1 son; i. Edward of Westminster, 1453–1471, died without issue III. Thomas, Duke of Clarence, 1387–1421, died without issue IV. John, Duke of Bedford, 1389–1435, died without issue V. Humphrey, Duke of Gloucester, 1390–1447, died without male issue E. John, 1374–1375, died in infancy House of Beaufort (illegitimate branch of House of Lancaster) F. John Beaufort, 1st Earl of Somerset, 1373–1410, illegitimate, had 4 sons; I. Henry Beaufort, 2nd Earl of Somerset, 1401–1418, died without issue II. John Beaufort, 1st Duke of Somerset, 1403–1444, died without male issue a. Margaret Beaufort, Countess of Richmond and Derby 1430–1509, married Edmund Tudor, 1st Earl of Richmond, 1 son i. Henry VII of England married Elizabeth of York To the House of Tudor III. Thomas Beaufort, Count of Perche, 1405–1431, died without issue IV. Edmund Beaufort, 2nd Duke of Somerset, 1406–1455, had 4 sons; a. Henry Beaufort, 3rd Duke of Somerset, 1436–1464, had 1 son; i. Charles Somerset, 1st