Uesugi Kagekatsu was born into the Nagao clan of Ueda, the son of Nagao Masakage. After Masakage's death, Kagekatsu was adopted by his uncle, Uesugi Kenshin, as his mother, Aya Gozen, was Kenshin’s elder sister. When Kenshin passed away suddenly in 1578, Kagekatsu found himself entangled in a power struggle with his stepbrother/cousin, Uesugi Kagetora, also adopted by Kenshin.
On March 17, 1578, Kagekatsu besieged Kagetora’s castle at Otate, resulting in its swift fall and Kagetora's forced seppuku. With this victory, Kagekatsu asserted his full inheritance and leadership over the Uesugi clan.
Aligned with the Toyotomi clan, Kagekatsu participated in military campaigns at Odawara and in both Korean Campaigns. His loyalty and competence earned him Aizu Domain and an income of 1.2 million koku. Highly esteemed by Hideyoshi, Kagekatsu was appointed as one of the Council of Five Elders.
Following Hideyoshi’s death in 1598, Kagekatsu observed as Tokugawa Ieyasu, another councilor, moved to divide the council members and the nation into East and West factions. Kagekatsu was among the first daimyo to oppose Ieyasu's actions, remaining loyal to the Toyotomi clan and supporting Ishida Mitsunari against the Tokugawa.
Kagekatsu's fortification of a castle at Aizu and the mobilization of troops drew the attention of Ieyasu, who marshaled a formidable force of 50,000 soldiers against the Uesugi. This move was likely part of Ishida Mitsunari's strategy to divert Ieyasu's attention from the Western loyalists. However, Ieyasu sensed the ploy and redirected his forces towards Sekigahara.
After the Western forces' defeat at Sekigahara, Kagekatsu aligned himself with the Tokugawa. He was granted the domain of Yonezawa with an income of 300,000 koku. Kagekatsu fought for the Tokugawa in the Osaka campaigns of 1614 and 1615.
Uesugi Kagekatsu passed away on April 19, 1623, in Yonezawa at the age of 67.
See also
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Matsudaira Nagachika
Matsudaira Nagachika (1473–1544?) was a daimyō of Japan’s Sengoku period and the third son of Matsudaira Chikatada. He was also the great-grandfather of Tokugawa Ieyasu.
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Oishi Yoshio
Oishi Yoshio (April 24, 1659 – March 20, 1703) served as the chamberlain of the Ako Domain in Harima Province, now part of modern-day Hyogo Prefecture, from 1679 to 1701. He is best known as the leader of the Forty-seven Rōnin in their 1703 vendetta and is honored as the central figure in the legendary tale of Chūshingura.
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Asano Nagaakira
Asano Nagaakira (March 18, 1586 – October 16, 1632) was a Japanese samurai and daimyō of the early Edo period. He initially ruled Wakayama Domain before being transferred to the Hiroshima Domain, where his family would remain until the Meiji Restoration.
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Takigawa Kazumasu
Takigawa Kazumasu (1525 – October 21, 1586), also known as Takikawa Sakon or Sakonshogen, was a prominent samurai and daimyō of the Sengoku period. He served as a loyal retainer and military commander under Oda Nobunaga and later Toyotomi Hideyoshi. His biological son, Toshimasu, was adopted by Maeda Toshihisa, the elder brother of Maeda Toshiie, and Kazumasu served alongside Toshiie in Nobunaga’s campaigns.
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Sanada Yukitaka
Sanada Yukitaka (c. 1512 – June 8, 1574) was a renowned samurai warrior of the Sengoku period, best known as one of the "Twenty-Four Generals of Takeda Shingen." He was the father of Sanada Nobutsuna and Sanada Masayuki, as well as the grandfather of the legendary Sanada Yukimura, who later served the Toyotomi clan.
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Torii Mototada
Torii Mototada (1539 – September 8, 1600) was a Japanese samurai and daimyo who lived through the Sengoku and late Azuchi–Momoyama periods. A loyal retainer of Tokugawa Ieyasu, he is best remembered for his heroic last stand at the Siege of Fushimi, an event that played a crucial role in shaping Japanese history.
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Toyotomi Hideyori
Toyotomi Hideyori (August 28, 1593 – June 4, 1615) was the son and designated successor of Toyotomi Hideyoshi, the general who first unified Japan. His mother, Yodo-dono, was Oda Nobunaga's niece.
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Okubo Tadanori
Okubo Tadanori (January 13, 1842 – August 10, 1897) was the 9th daimyo of Odawara Domain in Sagami Province (modern-day Kanagawa Prefecture) during the late Edo period. Before the Meiji Restoration, he held the courtesy title of Kaga no Kami.
