Columbia subject headings:
Church and state--Germany--History.
Lothair II, Holy Roman Emperor, 1075-1137.
Harvard subject headings:
Church and state--Germany--History
Germany--Church history--843-1517.
Germany--History--Lothair II, 1125-1137.
Lothair II, Holy Roman Emperor, 1075-1137.
Princeton subject headings:
Church and state--Germany--History.
Lothar III, Emperor of the Holy Roman Empire, d. 1137.