William De Mainwaring & Ellen Boteler 
William De and Ellen were married in a religious ceremony about 1443. They had a son named John De.
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Personal Details
William De Mainwaring
William De was born about 1410 in Over Peover, Carincham, Cheshire, Eng. He died before 1470.
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Children
John De Mainwaring
John De was born about 1440 in Over Peover, Carincham, Cheshire, Eng. He died on July 8th, 1495 in Over Peover, Carincham, Cheshire, Eng.
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=hayes-drake&id=I632953&style=TABLE
Further source/citation:
Anchetil de Harcourt - emsuggs.ged
Further source/citation:
Anchetil de Harcourt - emsuggs.ged