Columbia subject headings:
Harvard subject headings:
Mercenary troops--Switzerland--History--Congresses.
Patron and client--Europe--History--Congresses.
Patron and client--Switzerland--History--Congresses.
Patronage, Political--Europe--History--Congresses.
Patronage, Political--Switzerland--History--Congresses.
Switzerland--History--Congresses.
Zurlauben family--Congresses.
Princeton subject headings:
Mercenary troops--Switzerland--History.
Zurlauben family.