Columbia subject headings:
Middle Ages--Congresses.
Names, Geographical--Europe--Congresses.
Names, Germanic--Congresses.
Names, Personal--Europe--Congresses.
Names, Slavic--Congresses.
Harvard subject headings:
Middle Ages--Congresses
Names, Geographical--Europe--Congresses.
Names, Germanic--Congresses.
Names, Personal--Europe--Congresses.
Names, Slavic--Congresses.
Princeton subject headings:
Middle Ages--Congresses.
Names, Geographical--Europe--Congresses.
Names, Germanic--Congresses.
Names, Personal--Europe--Congresses.
Names, Slavic--Congresses.