John Of Gaunt Of England Duke Of Lancaster
John Of Gaunt was born on June 24th, 1340.  He died at the age of 57 on February 3rd, 1398.  He was buried in I Have A Copy Of His Will..

 Katherine Roelt
Katherine was born in 1350.  She died at the age of 53 in 1403.

 Joan Beaufort Queen Of Scotland
Joan was born about 1375.  She died on November 13th, 1440.

 John Beaufort 1st Duke Of Somerset
John was born in 1404.  He died at the age of 40 on May 27th, 1444.