Columbia subject headings:
Harvard subject headings:
Germany--History--Konrad III, 1138-1152--Congresses.
Germany--Kings and rulers--Congresses.
Holy Roman Empire--History--Konrad III, 1138-1152--Congresses.
Konrad III, King of the Romans, 1093-1152.
Princeton subject headings:
Germany--Kings and rulers--Congresses.
Holy Roman Empire--History--Conrad III, 1138-1152--Congresses.
Konrad III, King of the Romans, 1093-1152--Congresses.
Konrad III, King of the Romans, 1093-1152--Family--Congresses.
Konrad III, King of the Romans, 1093-1152--Influence--Congresses.