Ide Radoul de Mortagne was born circa 1122 to Everard II Radoul (-aft1159) and Richilde de Hainaut (c1107-c1154) and died circa 1169 of unspecified causes. She married Gautier d'Oisy (-1147) . Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Hugh Capet (c940-996)/s.
Note that she might have been her father's younger sister. In the current reconstruction, she was widowed with 10 children at the age of 25.
|Offspring of Ide de Mortagne and Gautier d'Oisy (-1147)|
|Nicholas d'Oisy (c1137-c1170)||1137||1170||Mathilde de Namur (c1120-c1170)|
|Petronille d'Oisy (c1137-aft1174)||1137||1174||Jan I van Peteghem (c1120-1154) Jan I van Peteghem (c1120-1154) Roger de Landas (-1171)|