 In the document the names of "Zuonizo" or "Zuonize" are mentioned with their origin still unclear until today.In a deed of gift of Archbishop Heribert of Cologne the name of Zons appears in a location reference, „Burgula bei "Zünce"“ (Burgula near Zünce)., Burgula being the site of today's "Haus Bürgel", an old mansion built on the ruins of a Roman settlement.Archaeological finds indicate that there was a Merovingian settlement in Zons in the seventh century, yet its exact location is not determined.