William FitzRalph de Mohun & partner 
They had a daughter named Isabel.
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Personal Details
William FitzRalph de Mohun
William was born in 1245 in Brown Manor, Treborough, Williton, Somersetshire, England.1
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Children
Isabel FitzWilliam de Mohun
Isabel was born in 1270 in Brown Manor, Treborough, Williton, Somersetshire, England.1