William de Willoughby & Maud de Fullerby 
They had a son named Robert.
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Personal Details
William de Willoughby
William was born in 1190 in Willoughby, Loughborough, Nottinghamshire, England.1
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Children
Sir Robert de Willoughby
Robert was born in 1217 in Willoughby, Loughborough, Nottinghamshire, England.1