This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Wit Frederick de Archiepiscopatus et electoratus Trevirensis .... from web site unibas ch func findc cclterm SIN ZBRyh Titel Archiepiscopatus et electoratus Trevirensis Kartenmaterial novissima delineatio exacte divisa in omnes suas prfecturas in hac quoque tabula accurate describiturs Eyfalia tractus cum privilegio potent ordinum