Lifespan: 15xx to 16xx
Clan: Shishido → Kōno
Lord: Kōno Michinao → Mōri Terumoto → Mōri Hidenari
Father: Shishido Motohide (?)
Adoptive Father: Kōno Michinao[Note; There is a theory that he was the same individual as Shishido Kageyoshi]
Kōno Michinori served as a bushō during the Azuchi-Momoyama and early Edo periods. He was a member of the Kōno clan serving as sengoku daimyō in Iyo Province in Shikoku and became a nominal leader of the clan after their decline.
Michinori’s year of birth and death are unknown.
In the era of Michinori’s adoptive father, Kōno Michinao, the Kōno clan serving as a daimyō family was extinguished by the Toyotomi. Former retainers who resented the fall of the clan may have been involved in an assassination attempt of Toyotomi Hideyoshi while he headed-out for the Bunroku Campaign in 1592, but the facts are unclear.
In 1600, at the Battle of Sekigahara, Michinori aligned with the Mōri clan and joined the Western Army.
Departing from Aki Province, Shishido Kageyoshi (a retainer of Mōri Terumoto who under one theory was the same individual as Michinori), along with Katsura Mototsuna and rōnin, or wandering samurai, protected by the Mōri including Murakami Takeyoshi, Murakami Motoyoshi, in addition to Murakami Yoshitada and Sone Kagefusa (commanders from Innoshima) sailed via Gogoshima in the Seto Inland Sea off the coast of Matsuyama and, on 9/17 of Keichō 5 (1600), landed at Mitsuhama in Iyo. Together with a contingent of 2,500 troops, this army invaded with the goal of recapturing the former territory of the Kōno family.
In Iyo, Hiraoka Naofusa and some of the former retainers of the Kōno family launched uprisings in support of the invasion. Katō Yoshiakira, the lord of Masaki Castle, was absent from the province and the defending troops were short-handed. Displaying a certificate from Toyotomi Hideyori, the invading forces pressured the defenders to vacate the castle, but an elder retainer of Yoshiakira named Tsukuda Kazunari delayed responding. That evening, while the invading forces rested confident of their victory, Kazunari and Adachi Shigenonbu led 200 soldiers on a nighttime attack that resulted in the deaths of Murakami Motoyoshi and Sone Kagefusa in an event known as the Nighttime Attack at Mitsuhama.
Members of the Kōno army (including former retainers who triggered the uprisings) holed-up in several locations including the Nyorai Temple in Kume, but were attacked at each site by the Katō forces. At the Nyorai Temple, Hiraoka Naofusa mounted a counterattack, wounding Kazunari and killing Kuroda Naotsugu, but, along with the former retainers, was thoroughly overrun and fled to Mount Dōgo. Thereafter, the remaining troops withdrew to the coastal area nearest the territory of the Mōri. The Katō army did not have enough forces to continue the pursuit and, after a skirmish on 9/23, that evening news arrived of the victory by the Eastern Army at the Battle of Sekigahara, after which the invaders departed to return to Aki.
The Kōno clan was not revived in Iyo. After withdrawing, Michinori served as a retainer of the Mōri and later died in Yamaguchi.