During the 3rd century, the Franks attempted to appropriate Batavia to the south of Lacus Flevo. |
|
In classical times there was already a body of water in this location, called Lacus Flevo by Roman authors. |
|
Location is in Protonilus Mensae in Ismenius Lacus quadrangle. |
|
The Romans held Lacus Flevo and all the marsh and riverland to the south. |
|