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Male John 4th Baron de Mowbray , of Thirsk, Sir Click to view John 4th Baron de Mowbray , of Thirsk, Sir in the family tree

John 4th Baron de was born on June 25th, 1340 in Epworth, Isle of Axholme, Lincolnshire, England.  John 4th Baron de's father was John 3rd Baron de Mowbray , of Thirsk, Sir and his mother was Joan Plantagenet.  His paternal grandparents were John 2nd Baron de Mowbray , of Thirsk, Sir and Aline de Braose , Heiress of Bramber & Gower; his maternal grandparents were Henry Plantagenet , 3rd Earl of Lancaster, MP and Maud de Chaworth. He had a sister named Eleanor (Alianore) de.  He was the older of the two children.  He died at the age of 28 in October 1368 in Killed by Saracens near Constantinople.


John 4th Baron de's family with Elizabeth de Segrave

‌John 4th Baron de and Elizabeth de were married in a religious ceremony about 1349.  They had a son and three daughters, named Thomas de, Margaret de, Joan (Jane) de and Eleanor de.

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