Columbia subject headings:
Japan--History--1185-1600.
Samurai--Japan--Chiba-ken--History.
Sōma family.
Harvard subject headings:
Japan--History--1185-1600.
Samurai--Japan--Chiba-ken--History.
Samurai--Japan--History.
Sōma family.
Princeton subject headings:
Japan--History--1185-1600.
Samurai--Japan--History.
Sōma family.