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Male John de Mowbray Click to view John de Mowbray in the family tree

John was born on September 4th, 1286 in Norfolk, England.1   John's father was 1st Baron de Mowbray of Axholme Roger de Mowbray and his mother was Roese de Clare.  His paternal grandparents were Roger de Mowbray and Maud de Beauchamp; his maternal grandparents were Earl of Gloucester Richard De Clare and Margaret De Burgh.  He was an only child.  He died  due to battle of Boroughbridge at the age of 35 on March 23rd, 1322 in Boroughbridge, Yorkshire, England.1 

Family Details of John's family with Aline de Braose

1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=arciek&id=I21806&style=TABLE
Further source/citation:
http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=arciek&id=I17543

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