Columbia subject headings:
Harvard subject headings:
Archaeology, Medieval--Europe.
Castles--History.
Excavations (Archaeology)--Europe
Manors--History.
Nobility--Economic conditions--To 1500.
Nobility--Europe--History--To 1500.
Princeton subject headings:
Archaeology, Medieval.
Castles--History.
Excavations (Archaeology)
Manors--History.