Columbia subject headings:
Feudal law--Germany--Congresses.
Germany--History--To 1517--Congresses.
Land tenure--Law and legislation--Germany--Congresses.
Landfriede--Congresses.
Harvard subject headings:
Feudal law--Germany--Congresses.
Germany--History--To 1517--Congresses.
Land tenure--Law and legislation--Germany--Congresses.
Landfriede--Congresses.
Princeton subject headings:
Feudal law--Germany--Congresses.
Germany--History--To 1517--Congresses.
Land tenure--Law and legislation--Germany--Congresses.
Landfriede--Congresses.