Columbia subject headings:
Harvard subject headings:
Cities and towns--Germany--Mainz (Rhineland-Palatinate)--History.
Mainz (Rhineland-Palatinate, Germany)--History
Princeton subject headings:
Cities and towns--Germany--Rhineland-Palatinate--History.
Rhineland-Palatinate (Germany)--History.
Urbanization--Germany--Rhineland-Palatinate--History.