was a
prefecture
A prefecture (from the Latin ''Praefectura'') is an administrative jurisdiction traditionally governed by an appointed prefect. This can be a regional or local government subdivision in various countries, or a subdivision in certain international ...
in the
Chūbu region
The , Central region, or is a region in the middle of Honshū, Japan's main island. In a wide, classical definition, it encompasses nine prefectures (''ken''): Aichi, Fukui, Gifu, Ishikawa, Nagano, Niigata, Shizuoka, Toyama, and ...
of
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
, comprising the former state of Mikawa and the
Chita Peninsula
Chita Peninsula (知多半島 ''Chita Hantō'') is a peninsula to the south of Aichi Prefecture, central Honshū, Japan. It runs approximately north-south. To the west is Ise Bay, while to the east it encloses Mikawa Bay. It faces the Atsumi ...
. It was merged into
Aichi Prefecture on November 27, 1872.
{{Aichi-geo-stub
Former prefectures of Japan