Columbia subject headings:
Harvard subject headings:
Germany--History--Lothair II, 1125-1137--Sources.
Holy Roman Empire--History--Lothair II, 1125-1137--Sources.
Lothair II, Holy Roman Emperor, 1075-1137.
Richenza, empress, -1141.
Princeton subject headings:
Germany--History--Lothar III, 1125-1137--Sources.
Holy Roman Empire--History--Lothar III, 1125-1137--Sources.