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Male John 1st Baron de Grey , of Rotherfield, KG Click to view John 1st Baron de Grey , of Rotherfield, KG in the family tree

John 1st Baron de was born on October 9th, 1300 in Rotherfield Greys Castle, Henley-on-Thames, Oxfordshire, England.  John 1st Baron de's father was John de Grey , of Rotherfield, MP, Sir and his mother was Margaret de Odingsells.  His paternal grandparents were Robert de Grey , of Rotherfield, Sir and Joan de Valognes , Heiress of Shabbington; his maternal grandparents were William de Odingsells , Lord of Maxtoke and Ela FitzWalter. He had a sister named Joan de.  He was the older of the two children.  He died at the age of 58 on September 1st, 1359.


John 1st Baron de's first family with Avice Marmion

‌John 1st Baron de and Avice were married in a religious ceremony after 1328 in 2nd wife.  They had a son and a daughter, named Robert de and Maud de.


John 1st Baron de's second family with Catherine FitzAlan

‌John 1st Baron de and Catherine were married in a religious ceremony in 1st wife.  They had a son named John 2nd Baron de.

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