John Mowbray
John was born in 1310.  He died at the age of 51 on October 4th, 1361 in York, Yorkshire, England.

 Joan Plantagenet
Joan was born about 1312.  She died on July 7th, 1349.

 John de Mowbray
John was born on June 25th, 1340 in Epworth, Lincolnshire, England.  He died at the age of 28 in 1368 in Constantinople, Turkey.  He was buried in 1368.

 Eleanor (Alinore) Mowbray
She died about 1387.