My Caspari ancestors (born circa 1820-1860) came from the Koblenz (Prussia) area and am pretty certain they were Catholic (altho they didn't attend any church after emigrating). One ancestor named his birth city as Burgen and also as Koblenz. Another named his birth city as Zell, Zeller, and Koblenz in different documents. I am hoping to find a map of the Koblenz area to determine what church microfilm to search for birth records. Does anyone know of a map that might help me? I've googled the heck out of it without much luck.