Columbia subject headings:
Mainz (Rhineland-Palatinate, Germany)--Genealogy.
Nobility--Germany--Mainz (Rhineland-Palatinate)
Harvard subject headings:
Mainz (Germany : Landkreis)--Social life and customs--To 1500.
Patricians (Rome)
Social classes--Germany--Mainz (Landkreis)--History--To 1500.
Princeton subject headings:
Mainz (Germany : Landkreis)--Social life and customs--To 1500.
Patricians (Rome)
Social classes--Germany--Mainz (Landkreis)--History--To 1500.