| 1．Kōchi Castle | ||||||
| Kōchi Castle (高知城, Kōchi-jō) is an Edo Period Japanese castle in the city of Kōchi, Kōchi Prefecture, Japan. It is located at Otakayama hill, at the center of Kōchi city, which in turn is located at the center of the Kōchi Plain, the most prosperous area of former Tosa Province on the island of Shikoku. From 1601 to 1871, it was the center of Tosa Domain, ruled by the tozama Yamauchi clan under the Tokugawa Shogunate. The castle site has been protected as a National Historic Site since 1959, with the area under protection expanded in 2014.[1] | ||||||
| Wikipedia Details | ||||||
| Type： Hirayamashiro (hilltop castle) Builder ： 1601 to 1611 Buildyear ： Yamanouchi Kazutoyo | ||||||
| 2．Aki Castle | ||||||
| Aki Castle (安芸城, Aki-jō) was a castle of the Aki clan in what is now the city of Aki, Kōchi Prefecture, Japan. Ruins still remain and the site was designated an Aki City Historic Site.[1] It is believed the castle was built by Aki Chikauji in 1308.[2] In 1569, the castle was besieged by Chōsokabe Motochika's force. Aki Kunitora, who was known as one of the seven great samurai of the Aki, entrenched himself in the castle, but later surrendered and committed seppuku.[3][4] Following the fall of the castle, Motochika appointed his younger brother Kōsokabe Chikayasu as the lord of the castle[3] and the castle became an important base for the Chōsokabe clan to invade Awa.[5] | ||||||
| Wikipedia Details | ||||||
| Type： Hirayama-style castle Builder ： 1308 Buildyear ： Aki Chikauji | ||||||
| 3．Okō Castle | ||||||
| Okō Castle (岡豊城, Okō-jō) was a Japanese castle structure located in what is now part of the city of Nankoku Kōchi Prefecture, Japan. It was the original base of power for the Chōsokabe clan who were feudal lords of Tosa Province during the late Muromachi and Sengoku periods and famous as the birthplace of the warlord Chōsokabe Motochika.[1][2][3] Its ruins have been protected as a National Historic Site since 2008.[4] | ||||||
| Wikipedia Details | ||||||
| Type： Hirayama-style castle Builder ： 13c-14c Buildyear ： Unknown |