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

 Elizabeth Segrave
Elizabeth was born on October 25th, 1338 in Croxton Abbey, Norfolk, England.  She died before 1368.

 Thomas Mowbray Duke of Norfolk
Thomas was born in Epworth, Isle of Axholme, Lincolnshire, England.  He died on September 22nd, 1399 in Venice, Venice, Italy.