GAUCHER [II] de Châtillon, son of HENRI Seigneur de Châtillon & his wife Ermengarde de Montjay (-19 Jun 1148). Seigneur de Châtillon, de Toissy, de Montjay et de Crécy.
m ADA de Roucy, daughter of HUGUES "Cholet" Comte de Roucy & his first wife Aveline --- ([1117]-1172 or after). The Genealogiæ Scriptoris Fusniacensis names "Wiscardus et ceteri filii et filie" as children of "Hugo congnomento Cholez", specifying that one daughter (unnamed, mentioned first) married "Galchero de Moniai " by whom she had "Guidonem et Galcherum"[734]. The Chronicle of Alberic de Trois-Fontaines refers to one sister of "Wichardum novissimum et Hugonem" as wife of "Galtheiro de Monteisi" but does not name her[735]. "Calcerus de Castelliolo" donated property to the abbey of Fontevraud with the consent of "uxore mea Ada et Guidone filio meo primogenito" by charter dated to shortly before 1145[736].
Gaucher [II] & his wife had two children