Columbia subject headings:
Harvard subject headings:
Castles--Japan--Sendai-han--History.
Fortification--Japan--Sendai-han--History.
Sendai-han (Japan)--History.
Princeton subject headings:
Castles--Japan--Sendai-han--History.
Fortification--Japan--Sendai-han--History.
Sendai-han (Japan)--History.