Person Sheet
NameJohn of Gaunt Plantagenet Duke of Lancaster 
, 6912, M
, 6912, MBirth1340-03-25, Ghent, Flanders
Death1398-02-03, Leicester Castle, England
FatherEdward III Plantagenet , 6913, M (1312-1377)
MotherPhilippa of Hainaulth and Holland , 6914, F (1311-1369)
Spouses
Birth1341-03-25
Death1369-09-12, Bollingbrooke Castle, England
FatherHenry Plantagenet Duke of Lancaster , 6922, M (1306-1361)
MotherIsabel de Beaumont , 4183, F (-1361)
Marriage1359-05-13, Reading, England
ChildrenPhilippa of Lancaster , 6841, F (1360-1415)
Elizabeth of Lancaster , 4003, F (1364-1425)
Edward , 4234, M (1364-1364)
John , 4232, M (<1366-)
Henry IV of Bolingbroke (Lancaster) , 4004, M (1366-1413)
Isabelle , 4236, F (1368-)
John , 4235, M
2Constance of Castile, 4020, F
Birth1354, Castrojeriz, Castile
Death1394-03-24, Leicester Castle, England
FatherPedro III Castille , 4021, M
Marriage1371-09-21, Roquefort, Guienne
ChildrenKatherine de Lancaster , 3300, F (1374-1418)
John , 4233, M (1374-1375)
Marriage1396-01-13, Lincoln Cathedral, England
4Marie de St Hilaire, 4252, F
Deathaft 1399
Unmarried
ChildrenBlanche , 4253, F (<1360-~1388)
Notes for John of Gaunt Plantagenet Duke of Lancaster
He had children by three different women, and married his last spouse well after the birth of their children.
Notes for Blanche of Lancaster (Spouse 1)
Died of the plague
Notes for Katharine (Spouse 3)
Mistress of John of Gaunt for many years, and didn’t marry him until after children born.
Notes for Marie (Spouse 4)
sometime Mistress