Columbia subject headings:
Castles--Japan--Toyohashi-shi--History.
Imagawa family.
Matsudaira family.
Harvard subject headings:
Imagawa family.
Matsudaira family.
Yoshidajō (Toyohashi-shi, Japan)--History.
Princeton subject headings:
Imagawa family.
Matsudaira family.
Yoshidajō (Toyohashi-shi, Japan)--History.