John de Mowbray, 3rd Lord Mowbray
John was born on November 29th, 1310.  He died at the age of 50 on October 4th, 1361.

 Joan Plantagenet
She died on July 7th, 1345.  She was buried in Byland Abbey, Yorkshire, England.

 John Mowbray, 4th Lord Mowbray
John was born on June 24th, 1340 in Epworth, Lincolnshire, England.  He died at the age of 28 in 1368 in Constantinople, Turkey.