(1545 – September 25, 1643) was a Japanese

samurai were the hereditary military nobility and officer caste of medieval and early-modern Japan from the late 12th century until their abolition in 1876. They were the well-paid retainers of the '' daimyo'' (the great feudal landholders). They h ...

of the

Sengoku period The was a period in History of Japan, Japanese history of near-constant civil war and social upheaval from 1467 to 1615. The Sengoku period was initiated by the Ōnin War in 1467 which collapsed the Feudalism, feudal system of Japan under the ...

through

Edo period The or is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's 300 regional '' daimyo''. Emerging from the chaos of the Sengoku period, the Edo period was characteriz ...

, who served the

Uesugi clan The is a Japanese samurai clan which was at its peak one of the most powerful during the Muromachi and Sengoku periods (14th to 17th centuries). Appert, Georges. (1888) ''Ancien Japon,'' p. 79./ref> At its height, the clan had three main branch ...

. In 1576, in order to promote stability in

Noto Province was a province of Japan in the area that is today the northern part of Ishikawa Prefecture in Japan, including the Noto Peninsula (''Noto-hantō'') which is surrounded by the Sea of Japan. Noto bordered on Etchū and Kaga provinces to the so ...

, Jōjō Masashige was backed as the next head of the

Hatakeyama clan The was a Japanese samurai clan. Originally a branch of the Taira clan and descended from Taira no Takamochi, they fell victim to political intrigue in 1205, when Hatakeyama Shigeyasu, first, and his father Shigetada later were killed in battle ...

, who had earlier been tendered by the Hatakeyama as hostage. In 1577, Masashige fought at

Battle of Tedorigawa The took place near the Tedori River in Japan's Kaga Province in 1577, between the forces of Oda Nobunaga against Uesugi Kenshin. Kenshin tricked Nobunaga into launching a frontal attack across the Tedorigawa and defeated him. Having suffere ...

and brought victory to many of his allies, by mobilizing his troops to Etchu and Kozuke. In 1578, After the death of his previous lord,

Uesugi Kenshin , later known as was a Japanese ''daimyō''. He was born in Nagao clan, and after adoption into the Uesugi clan, ruled Echigo Province in the Sengoku period of Japan. He was one of the most powerful ''daimyō'' of the Sengoku period. Known as ...

, he became quite at odds with the new successor, and son of Kenshin,

Uesugi Kagekatsu was a Japanese samurai ''daimyō'' during the Sengoku and Edo periods. He was the adopted son of Uesugi Kenshin and Uesugi Kagetora’s brother in law. Early life and rise Kagekatsu was the son of Nagao Masakage, the head of the Ueda Nagao c ...

. Masashige served both Uesugi Kenshin as well as Uesugi Kagekatsu. In the

Siege of Otate The 1578 took place following the sudden death of Uesugi Kenshin. Kenshin had requested that the inheritance be split between his nephew, Uesugi Kagekatsu, and his adopted son Uesugi Kagetora. This conflict happened because of neither heirs being ...

, he supported

Uesugi Kagetora was the seventh son of Hōjō Ujiyasu; known as Hōjō Saburō, he was adopted by Uesugi Kenshin, and was meant to be Kenshin's heir. However, in 1578, he was attacked in his castle at Otate by Uesugi Kagekatsu—Kagetora's respective brother-in ...

at first but later switched to Kagekatsu. After the battle, he suddenly left the

References

Jōjō family information on Harimaya.com
(3 Oct. 2007) Samurai 1545 births 1643 deaths {{samurai-stub