Beaufort-en-Vallée(France)
Editor of DKAR 1:58 identifies Monnet as in arrondisement of Beaugé/Baugé, which was abolished in 1926. Editor of cartulary of Saint-Aubin identifies Multonacus as Monnet in commune of Beaufort-en-Vallée (formerly in arrondisement of Beaugé).
Bouchemaine(France)
According to French Wikipedia, the modern commune consists of three villages: Pruniers, Bouchemaine et la Pointe. Editor of DKAR 1:58 identifies Pruniers with Prunarius.
Unknown 823(France)
Editor of DKAR 1:58 identifies as Papillaie in commune of Angers; modern location not identified.
Unknown 832(France)
Appears in DKAR 1:58; probably in region of Angers.
Unknown 835(France)
Island near Angers, identified by editor of DKAR 1:58 as Gilettes. Editor of cartulary of St-Aubin says it is opposite La Baumette (SW quarter of Angers, on banks of Lac de Maine). Not so far located via Geonames, Google Maps or OpenStreetMap.