Also known as: 深志城 (Fukashi-jou), 鴉城 (Karasu-jou)

A castle in Matsumoto which was built by the Ogasawara Clan during the Sengoku Period (then called Fukashi-jou). It was captured by Takeda Shingen in 1550 and recaptured by Ogasawara Sadayoshi in 1582, who changed the castle's name to Matsumoto Castle. Later it came under the rule of Toyotomi Hideyoshi and Tokugawa Ieyasu.

Hideyoshi appointed Ishikawa Kazumasa the new lord of Matsumoto Castle, and he and his son, Ishikawa Yasunaga, maintained the castle and town. Yasunaga greatly expanded the castle probably around the years 1593-1594, adding the three towers tenshu (danjon tower), inui-kotenshu (small tower in the northwest), and watari-yagura (connecting scaffold), as well as the goten (residence), taikomon (drum gate), kuromon (black gate), yagura (scaffold), hori (trench), honmaru (the main wing), ninomaru (the second wing), and sannomaru (the third wing).

Matsumoto Castle is one of the best-preserved castles in Japan and is one of the designated national treasures. It is also called "Crow Castle (Karasu-jou)" for its black walls.