Columbia subject headings:
Baden (Germany)--History.
Burgundy (France)--History.
Germany--History--843-1273.
Zahringen, House of.
Harvard subject headings:
Freiburg im Breisgau (Germany)--History--To 1500--Congresses.
Nobility--Germany--Baden-Württemberg--History--To 1500--Congresses.
Nobility--Germany--Freiburg im Breisgau--History--To 1500--Congresses.
Zaring family--Congresses.
Princeton subject headings:
Baden (Germany)--History.
Baden-Württemberg (Germany)--History--To 1500--Congresses.
Burgundy (France)--History.
Freiburg im Breisgau (Germany)--History--To 1500--Congresses.
Germany--History--843-1273.
Nobility--Germany--Baden-Württemberg--History--To 1500--Congresses.
Nobility--Germany--Freiburg im Breisgau--History--To 1500--Congresses.
Zähringen family--History--Congresses.
Zähringen, House of--Congresses.