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

John was born in 1255 in Cadenay, Lincolnshire, England.1   John's father was John de Byron and his mother was Joan Thies Teutonick.  His paternal grandparents were Robert de Byron and Maud; his maternal grandparents were Sir Baldwin Thies Teutonick and <Unknown>.  He was an only child.  He died at the age of 84 in 1339.1 

Family Details of John's family with Alice Banastre

1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=stolp&id=I1709&style=TABLE
Further source/citation:
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I102561&style=TABLE

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