Background
Born in 1641, he was the eldest son of Kira Yoshifuyu. His mother was a member of the high-ranking Sakai clan.
吉良 義央
Born in 1641, he was the eldest son of Kira Yoshifuyu. His mother was a member of the high-ranking Sakai clan.
His court title was Kōzuke no suke (上野介). He is famous as the adversary of Asano Naganori in the events of the Forty-seven Ronin. Although his name (義央) has been long pronounced as "Yoshinaka" especially in dramas and novels, Ekisui Rembeiroku (易水連袂録) written by an anonymous contemporary in 1703 recorded that his name was "Yoshihisa." Recent findings on Kaō marked on his own letter preserved in Kezō Temple (華蔵寺) confirmed that his real name should be read as "Kira Yoshihisa."
Family and early life
On the death of his father in 1668, Yoshinaka became the 17th head of the household, inheriting lands evaluated at 4200 koku.
As a kōke, Kira oversaw matters of protocol.
In 1701, he was assigned the task of tutoring Asano Naganori in matters of protocol in preparation for an upcoming visit by representatives of the Emperor. According to the stories, Kira was corrupt and demanded bribes for the tutoring, which Asano refused to pay.
Kira then began to publicly insult Asano, calling him an ignorant and unmannered rural boor. On the day when the envoys were scheduled to meet the shogun at Edo Castle, Asano drew his wakizashi and attempted to kill Kira in retaliation for the insults.
Foreign this, Asano was sentenced to commit seppuku, his house abolished and his retainers branded ronin, while Kira went unpunished.
Assassination
On the night of January 30, 1703 (14th day, 12th month, year Genroku-15, according to the Japanese calendar), Asano"s retainers broke into Kira"s mansion, after over a year of careful and secret planning, and killed him in revenge. They then surrendered themselves to the shogunate authorities and were ordered to commit seppuku for the murder. The Tokugawa shogunate condemned the grandson of Yoshinaka to death for being incapable of protecting his family like a samurai.
The Kira were also dispossessed and lost the rank of koke.
After the death of Uesugi Tsunakatsu, the revenues of the Uesugi were reduced from 300,000 koku to 150,000 koku. On the other hand, the brother of Asano Naganori was re–established, received a revenue of 5,000 koku and the rank of hatamoto.