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.
Cornino(Italy)
In Val di Cornia, near Populonia (prov. Livorno, Tuscany)
Creuzburg(Germany)
According to editor of DKAR 1:103, Meilingen (Milinga) has been merged into Creuzburg.