Roger (unknown) 
Robert Thomas Beatrice
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| Roger (unknown) |
| Robert Thomas Beatrice
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Roger de Muschamp
abt 1064, Normandy, Brittany, Plouigneau France - 1086, Lincolnshire, Willoughby England
(unknown)
abt 1064, Normandy France - ??
Married: ?? - ??
Robert de Muschamp (de Bulmer), 1st of Wooler
abt 1097, Derbyshire, Ikeston England - ??, Northumberland, Wooler England
Thomas de Muschamp
abt 1098, England - ??
Beatrice de Muschamp
abt 1105, Lincolnshire, Willoughby England - ??