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Male Sir John Byron Click to view Sir John Byron in the family tree

John was born in 1245 in Clayton, South Manchester, Lancashire, England.1   John's father was Sir Robert Byron and his mother was <Unknown>.  His paternal grandparents were Sir Robert de Byron and Cecelia de Clayton. He had a brother named Robert.  He was the older of the two children.  He died at the age of 63 in 1308.1 

Family Details of John's family with Alice

1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=michaelrneuman&id=I039491&style=TABLE
Further source/citation:
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I039498

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