Unknown 2439(Germany)
FRE editor says it is probably Schwimmbach, district Straubing-Bogen.
Unknown 713(Medieval Territory)
Editor of DKAR 1: 169 identifies Nordfilusa as the region around the northern Vils (a tributary of the Danube, which flows into it by Vilshafen, Niederbayern).
Unknown 927(Germany)
three possible identifications, all in Bavaria