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Yamana Sōzen

Yamana Sōzen
Samurai-dokoro
In office
1440–1441
Preceded by Toki Mochimasu
Succeeded by Kyōgoku Mochikiyo
Shugo Governor of Bingo Province
In office
1433–1450
Preceded by Yamana Tokihiro
Succeeded by Yamana Noritoyo
Shugo Governor of Aki Province
In office
1433–1450
Preceded by Yamana Tokihiro
Succeeded by Yamana Noritoyo
Shugo Governor of Iga Province
In office
1433–1450
Preceded by Yamana Tokihiro
Succeeded by Yamana Noritoyo
Shugo Governor of Tajima Province
In office
1433–1450
Preceded by Yamana Tokihiro
Succeeded by Yamana Noritoyo
Shugo Governor of Harima Province
In office
1441–1450
Preceded by Akamatsu Mitsusuke
Succeeded by Yamana Noritoyo
Personal details
Born (1404-07-06)July 6, 1404
Died April 15, 1473April 15, 1473(1473-04-15) (aged 68)
Kyoto, Japan
Nationality Japanese

Yamana Sōzen (山名 宗全?, July 6, 1404 – April 15, 1473) was originally Yamana Mochitoyo (山名 持豊?) before becoming a monk. Due to his red complexion, he was sometimes known as Aka-nyūdō, "the Red Monk". He was one of the daimyōs who fought against Hosokawa Katsumoto during the Ōnin War in Kyoto.

Yamana Sōzen was born to Yamana Tokihiro (1367–1435), head of the Yamana clan. Tokihiro was the shugo governor of Tajima, Bingo, Aki, and Iga provinces. Tokihiro, who was often in bad health, retired in 1433 and passed his numerous lands to Sōzen. Sōzen went on to defeat Akamatsu Mitsuhide (1373–1441) in the Kakitsu Incident, and became governor Harima Province the same year.

The Yamana clan had seen many defeats over the years, while the Hosokawa clan was one of the three families which controlled the position of kanrei, deputy to the shogun. Thus, Yamana Sōzen resented the wealth and power enjoyed by his son-in-law, Hosokawa Katsumoto. Unwilling to engage him in open warfare until he was sure of his strength, Yamana chose to intervene in a number of succession disputes and other political affairs, thwarting Hosokawa's plans and desires, and slowly gaining allies for himself.


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