The Chronico Sancti Petri Vivi Senonensis records that "Frotmundus vicecomes Senonum" captured "castellum S Columbæ" in 942. There is no proof that Fromond was the son of Warnarius and his absence from the lists of brothers in the charters cited above suggests that he may not have been related. However, no other Vicomte de Sens is named in the Chronico between the death of Warnarius recorded in 924 and this entry for Fromond.
Vicomte de Sens.
The sacrementaire of Sens cathedral records the death "Id Aug 948" of "Frothmundus comes Senonensis". The necrology of the abbey of Saint-Magloire records the death "II Id Aug" of "Fromundus comes". 2