The town Cloppenburg is a part of the province Oldenburg, former Dukedom of Oldenburg
Hofa coud be Hofe, as a part of Meppen (former Kingdom of Hannover) or as part of Herford (Westphalia)
or it coud be the town Hoya (Hannover)
Wegholm is a part of Petershagen near Minden
Holler is a small town near Montabaur / Koblenz