Columbia subject headings:
Harvard subject headings:
Cities and towns, Medieval--Belgium--Flanders.
Cities and towns, Medieval--Europe.
Cities and towns, Medieval--Italy--Sicily.
Cities and towns, Medieval--Switzerland.
Community development--Belgium--Flanders--History--To 1500.
Community development--Italy--Sicily--History--To 1500.
Community development--Switzerland--History--To 1500.
Flanders (Belgium)--History--To 1500.
Municipal government--Europe--History.
Oaths--Belgium--Flanders--History--To 1500.
Oaths--Belgium--Flanders--History.
Oaths--Italy--Sicily--History--To 1500.
Oaths--Italy--Sicily--History.
Oaths--Switzerland--History--To 1500.
Oaths--Switzerland--History.
Sicily (Italy)--History--To 1500.
Switzerland--History--To 1500.
Princeton subject headings:
Community development--Belgium--Flanders--History--To 1500.
Community development--Italy--Sicily--History--To 1500.
Community development--Switzerland--History--To 1500.
Flanders (Belgium)--History--To 1500.
Sicily (Italy)--History--To 1500.
Switzerland--History--To 1500.