Columbia subject headings:
Castles--Spain--Seville (Province)--History.
Fortification--Spain--Seville (Province)--History.
Islamic architecture--Spain--Seville (Province)
Harvard subject headings:
Castles--Spain--Seville (Province)--History.
Fortification--Spain--Seville (Province)--History.
Islamic architecture--Spain--Seville (Province)
Princeton subject headings: