John Gaunt (Duke Lancaster)
John was born in March 1340 in Abbaye De St Bavon, Ghent, Flandre Orientale, Belgium.¹   He died at the age of 58 on February 3rd, 1399 in Leicester Castle, England.¹ 

 Katherine De Roet
Katherine was born in 1350 in Picardy, Somme, , France.¹   She died at the age of 53 on May 10th, 1403 in Lincoln, , Lincolnshire, England.¹ 

 Henry Beaufort
Henry was born in 1375 in Chateau Beaufort, France.  He died at the age of 72 on April 11th, 1447 in Wolvesey Palace, Winchester, England.