The emblem (mon) of the Ch?sokabe clan
|Parent house||Hata clan ()|
|Final ruler||Ch?sokabe Morichika|
|Ruled until||1615, Battle of Osaka|
Ch?sokabe clan (, Ch?sokabe-shi), also known as Ch?sokame (), was a Japanese samurai kin group. Over time, they were known for serving the Hosokawa clan, then the Miyoshi clan and then the Ichijo clan.
A family tree of Ch?sokabe clan.
In their early history of the Sengoku period, Ch?sokabe Kunichika's father Kanetsugu, was killed by the Motoyama clan in 1508. Therefore, Kunichika was raised by the aristocrat Ichij? Husaie of the Ichij? clan in Tosa Province. Later, towards the end of his life, Kunichika took revenge on the Motoyama clan and destroyed them with the help of the Ichij? in 1560. Kunichika would go on to have children, including his heir and the future Daimyo of the Ch?sokabe, Motochika, who would go on to unify Shikoku.
First, the Ichij? family was overthrown by Motochika in 1574. Later, he gained control of the rest of Tosa due to his victories at the Battle of Watarigawa in 1575. He then also destroyed the Kono and the Soga clan. Over the ensuing decade, he extended his power to all of Shikoku in 1583. However, in 1585, Toyotomi Hideyoshi (Oda Nobunaga's successor) invaded that island with a force of 100,000 men, led by Ukita Hideie, Kobayakawa Takakage, Kikkawa Motonaga, Toyotomi Hidenaga, and Toyotomi Hidetsugu. Motochika surrendered, and forfeited Awa, Sanuki, and Iyo Provinces; Hideyoshi permitted him to retain Tosa.
Under Hideyoshi, Motochika and his son Ch?sokabe Nobuchika participated in the invasion of neighboring Ky?sh?, in which Nobuchika died. In 1590, Motochika led a naval fleet in the Siege of Odawara, and also fought in the Japanese invasions of Korea along with Toyotomi Hideyoshi in 1592.
After Motochika died in 1599 at age 61, the next clan leader was his son Ch?sokabe Morichika. He led the clan forces in support of the Toyotomi at the Battle of Sekigahara. After 1600, the Ch?sokabe were removed as daimyo of Tosa.
The Ch?sokabe are a playable faction in Total War: Shogun 2.