The primary source whjich confirms her parentage has not been identified. "Uxor mea Margarita…" consented to the freeing of the men of the church of Notre-Dame-de-Mondoubleau by "Hugo Castriduni vicecomes" by charter dated 1163. "Hugonem vicecomitem Castriduni" donated property to Saint-Denis de Nogent with the consent of "uxor vicecomitis Margarita et filii eorum Gaufridus, Hugo et Paganus" by charter dated 1166. "Hugo vicecomes Castriduni…et Margarita uxor mea et filii mei Gaufridus, Hugo et Paganus" confirmed a donation to La Madeleine de Châteaudun by charter dated 1175. 1