Genealogy This family tree includes selected members of the House of Plantagenet who were born legitimate. Angevins Henry II of England, 1133–1189, had 5 sons; 1. William IX, Count of Poitiers, 1153–1156, died in infancy 2. Henry the Young King, 1155–1183, died without issue 3. Richard I of England, 1157–1199, died without legitimate issue 4. Geoffrey, Duke of Brittany, 1158–1186, had 1 son; A. Arthur I, Duke of Brittany, 1187–1203, died without issue 5. John of England, 1167–1216, had 2 sons; Plantagenets A. Henry III of England, 1207–1272, had 6 sons; I. Edward I of England, 1239–1307, had 6 sons. a. John of England, 1266–1271, died young b. Henry of England, 1267–1274, died young c. Alphonso, Earl of Chester, 1273–1284, died young d. Edward II of England, 1284–1327, had 2 sons; i. Edward III of England, 1312–1377, had 8 sons; 1. Edward, the Black Prince, 1330–1376, had 2 sons; A. Edward, 1365–1372, died young B. Richard II of England, 1367–1400, died without issue 2. William of Hatfield, 1337–1337, died in infancy 3. Lionel of Antwerp, 1st Duke of Clarence, 1338–1368, 1 daughter. A. Philippa, 5th Countess of Ulster, 1355–1381, married Edmund Mortimer, 3rd Earl of March, 2 sons and 2 daughters I Elizabeth Mortimer, 1371–1417 married Henry Percy (Hotspur), 1 son, 2 daughter To the Earls of Northumberland II Roger Mortimer, 4th Earl of March, 1373–1398, married Eleanor daughter of Thomas Holland, 1st Earl of Kent and Alice Holland, Countess of Kent granddaughter of Eleanor of Lancaster a. Anne de Mortimer, 1373–1399, married Richard of Conisburgh, 3rd Earl of Cambridge (see below) and it is through her descent from Lionel that the House of York claimed precedence over the House of Lancaster. To the House of York b. Edmund Mortimer, 5th Earl of March, 1391–1425, heir presumptive to Richard II, no descendants 6. Thomas of England, 1347–1348, died in infancy 7. William of Windsor, 1348–1348, died in infancy 8. Thomas of Woodstock, 1st Duke of Gloucester, 1355–1397, had 1 son; A. Humphrey Plantagenet, 2nd Earl of Buckingham, 1381–1399, died without issue ii. John of Eltham, Earl of Cornwall, 1316–1336, died without issue e. Thomas of Brotherton, 1st Earl of Norfolk, 1300–1338, had 2 sons; i. Edward of Norfolk, 1320–1334, died young ii. John Plantagenet, 1328–1362, died without issue f. Edmund of Woodstock, 1st Earl of Kent, 1301–1330, had 2 sons; i. Edmund Plantagenet, 2nd Earl of Kent, 1326–1331, died young