
Chikazane, the son of Kira Chikasada and the nephew of the famous daimyō Chōsokabe Motochika, was married to his cousin, Motochika’s daughter. From a young age he showed great talent and promise, but his character was marked by a quick temper and a tendency toward sharp, sometimes aggressive behavior.
In 1586, he openly protested the obligation imposed on him to supply timber from Tosa for the construction of the Great Buddha—a large-scale project ordered by Toyotomi Hideyoshi.
When Chōsokabe Nobuchika was killed in 1587, Motochika appointed his fourth son, Chōsokabe Morichika, as his heir. This decision displeased Kira Chikazane, who argued that the heir should have been Kagawa Chikazane.
At the same time, he became involved in a conflict with Hisatake Chikanao, one of the most trusted retainers of the Chōsokabe clan. This quarrel ultimately became the turning point that led to the decline of his career. Because of the verbal complaints he voiced, Motochika ordered Chikazane to be placed under arrest, and later an order was issued commanding him to commit seppuku.
See also
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Takeda Nobuyoshi

Takeda Nobuyoshi (1128–1186 or later) was a prominent Japanese samurai lord of the late Heian and early Kamakura periods and the founder of the Takeda clan.
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Tokugawa Iemochi

Tokugawa Iemochi (1846–1866) was the fourteenth shōgun of the Tokugawa shogunate and ruled from 1858 until his death. His reign came during the turbulent final years of the shogunate, when Japan faced growing Western pressure and serious internal political conflict.
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Tokugawa Ienari

Tokugawa Ienari (1773–1841) was the eleventh shōgun of the Tokugawa shogunate and ruled from 1787 to 1837, making him the longest-serving Tokugawa shōgun. He was a great-grandson of the eighth shōgun, Tokugawa Yoshimune.
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Matsudaira Nobuyasu

Matsudaira Nobuyasu was only twenty years old when his father ordered him to commit seppuku. The reason was not a defeat in battle, but a crisis inside the Tokugawa family that had become too dangerous to ignore.
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Yamagata Masakage

Masakage was one of Takeda Shingen’s most loyal and capable commanders. He was included in the famous list of the “Twenty-Four Generals of Takeda Shingen” and also belonged to the inner circle of four especially trusted warlords known as the Shitennō.
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Yagyu Munenori

Yagyū Munenori began his service under Tokugawa Ieyasu while his father, Yagyū Muneyoshi, was still at his side. In 1600, Munenori took part in the decisive Battle of Sekigahara. As early as 1601, he was appointed a kenjutsu instructor to Tokugawa Hidetada, Ieyasu’s son, who later became the second shogun of the Tokugawa clan.
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Yagyu Muneyoshi

A samurai from Yamato Province, he was born into a family that had been defeated in its struggle against the Tsutsui clan. Muneyoshi first took part in battle at the age of sixteen. Due to circumstances beyond his control, he was forced to enter the service of the Tsutsui house and later served Miyoshi Tōkei. He subsequently came under the command of Matsunaga Hisahide and in time became a vassal first of Oda and later of Toyotomi.
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Endo Naozune

Naozune served under Azai Nagamasa and was one of the clan’s leading vassals, renowned for his bravery and determination. He accompanied Nagamasa during his first meeting with Oda Nobunaga and at that time asked for permission to kill Nobunaga, fearing him as an extremely dangerous man; however, Nagamasa did not grant this request.
