Duke of Lancaster John of Gaunt
Duke of Lancaster John of was born in March 1340 in St Bavon's Abbey, Ghent Belgium.¹   He died at the age of 58 on February 3rd, 1399 in Leicester Castle, Leicestershire, England.  He was buried in St. Paul's Cathedral, London, Middlesex, England.^1 1 

 Marie De St. Hilaire

 Blanche Plantagenet
Blanche was born before 1360.  She died about 1388.