Click to expand/collapse all notes Click to expand/collapse all other details

Male John 1St Baron De Grey Click to view John 1St Baron De Grey in the family tree

John 1St Baron De was born on October 9th, 1300 in Rotherfield Greys Castle, Henley-On-Thames, Oxfordshire, England and his baptism took place on November 1st, 1300 in Rotherfield, Sussex, England.1   John 1St Baron De's father was John De Grey and his mother was Margaret De Odingsells. 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 in Rotherfield, Sussex, England.2 


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.3   They had two sons and a daughter, named John, Robert and Maud (Matilda).


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.4   They had a son named John 2Nd Baron De.

1 Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne,  Sutton Publishing Lt @ VI:145-7
2 Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne,  Sutton Publishing Lt @ VI:147-9
3 Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne,  Sutton Publishing Lt @ VI:146-7
4 Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne,  Sutton Publishing Lt @ VI:148
5 Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne,  Sutton Publishing Lt @ VI:147 (f)
6 Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne,  Sutton Publishing Lt @ VI:147-8
Further sources/citations:
Ancestral Roots of Certain American Colonists, 7th Edition, by Frederick Lewis Weis, additions by Walter Lee Shippard Jr. @ 30-30, The Magna Charta Sureties 1215, Frederick Lewis Weis, additions by Walter Lee Sheppard Jr, 5th Edition, 1999 @ 50-5


\