was originally before becoming a monk. Due to his red complexion, he was sometimes known as ''Aka-nyūdō'', "the Red Monk". He was one of the ''
daimyō
were powerful Japanese magnates, feudal lords who, from the 10th century to the early Meiji era, Meiji period in the middle 19th century, ruled most of Japan from their vast, hereditary land holdings. They were subordinate to the shogun and n ...
s'' who fought against
Hosokawa Katsumoto
was one of the Kanrei, the Deputies to the Shōgun, during Japan's Muromachi period. He is famous for his involvement in the creation of Ryōan-ji, a temple famous for its rock garden, and for his involvement in the Ōnin War, which sparked the 1 ...
during the
Ōnin War
The , also known as the Upheaval of Ōnin and Ōnin-Bunmei war, was a civil war that lasted from 1467 to 1477, during the Muromachi period in Japan. ''Ōnin'' refers to the Japanese era during which the war started; the war ended during the Bunmei ...
in
Heian-kyō
Heian-kyō was one of several former names for the city now known as Kyoto. It was the official capital of Japan for over one thousand years, from 794 to 1868 with an interruption in 1180.
Emperor Kanmu established it as the capital in 794, mov ...
.
Biography
Yamana Sōzen was born to
Yamana Tokihiro (1367–1435), head of the Yamana clan. Tokihiro was the ''
shugo
, commonly translated as “(military) governor,” “protector,” or “constable,” was a title given to certain officials in feudal Japan. They were each appointed by the ''shōgun'' to oversee one or more of the provinces of Japan. The pos ...
'' governor of
Tajima,
Bingo
Bingo or B-I-N-G-O may refer to:
Arts and entertainment Gaming
* Bingo, a game using a printed card of numbers
** Bingo (British version), a game using a printed card of 15 numbers on three lines; most commonly played in the UK and Ireland
** Bi ...
,
Aki, and
Iga Iga may refer to:
Arts and entertainment
* Ambush at Iga Pass, a 1958 Japanese film
* Iga no Kagemaru, Japanese manga series
* Iga, a set of characters from the Japanese novel '' The Kouga Ninja Scrolls''
Biology
* ''Iga'' (beetle), a gen ...
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
was a after ''Eikyō'' and before ''Bun'an''. This period spanned the years from February 1441 through February 1444. The reigning emperor was .
Change of era
* 1451 : The era name was changed to mark an event or a number of events. The previ ...
, and became governor of
Harima Province
or Banshū (播州) was a province of Japan in the part of Honshū that is the southwestern part of present-day Hyōgo Prefecture. Harima bordered on Tajima, Tanba, Settsu, Bizen, and Mimasaka Provinces. Its capital was Himeji.
During the ...
the same year.
The
Yamana clan
The was a Japanese samurai clan which was one of the most powerful of the Muromachi period (1336-1467); at its peak, members of the family held the position of Constable (''shugo'') over eleven provinces. Originally from Kōzuke Province, and late ...
had seen many defeats over the years, while the
Hosokawa clan
The is a Japanese Samurai kin group or clan.
Ancestors
# Emperor Jimmu
# Emperor Suizei
# Emperor Annei
# Emperor Itoku
# Emperor Kōshō
# Emperor Kōan
# Emperor Kōrei
# Emperor Kōgen
# Emperor Kaika
# Emperor Sujin
# Emperor Suinin
# Emper ...
was one of the three families which controlled the position of ''
kanrei
or, more rarely, ''kanryō'', was a high political post in feudal Japan; it is usually translated as ''shōguns deputy''. After 1349, there were actually two ''Kanrei'', the ''Kyoto Kanrei'' and the ''Kantō Kanrei''.
Originally, from 1219 until ...
'', deputy to the shōgun. Thus, Yamana Sōzen resented the wealth and power enjoyed by his son-in-law,
Hosokawa Katsumoto
was one of the Kanrei, the Deputies to the Shōgun, during Japan's Muromachi period. He is famous for his involvement in the creation of Ryōan-ji, a temple famous for its rock garden, and for his involvement in the Ōnin War, which sparked the 1 ...
. 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.
In 1464, a succession dispute erupted over the shogunate itself. The shōgun,
Ashikaga Yoshimasa Ashikaga (足利) may refer to:
* Ashikaga clan (足利氏 ''Ashikaga-shi''), a Japanese samurai clan descended from the Minamoto clan; and that formed the basis of the eponymous shogunate
** Ashikaga shogunate (足利幕府 ''Ashikaga bakufu''), a ...
, was considering retirement. Hosokawa supported the Shōgun's brother,
Ashikaga Yoshimi
(March 3, 1439 – February 15, 1491) was the brother of Shōgun Ashikaga Yoshimasa, and a rival for the succession in a dispute that would lead to the Ōnin War.
Life
Yoshimi was the abbot of a Jōdo monastery when he was first approached ...
as the successor.
Hino Tomiko
was a prominent figure during the Muromachi period and the beginning of the Sengoku period. She was daughter to Hino Shigemasa and was the official wife of Ashikaga Yoshimasa, the eighth ''shōgun'' of the Ashikaga shogunate (at first Tomiko wa ...
, who was the mother of
Ashikaga Yoshihisa
was the 9th ''shōgun'' of the Ashikaga shogunate who reigned from 1473 to 1489 during the Muromachi period of Japan.Ackroyd, Joyce. (1982) ''Lessons from History: The Tokushi Yoron'', p. 331. Yoshihisa was the son of the eighth ''shōgun'' Ashi ...
, was against her husband's decision to give the shogunate to Yoshimi, so she sought military support to secure the succession of her son Yoshihisa. Yamana chose to support Yoshihisa, the Shōgun's infant son.
In 1466, both sides having spent several years gathering forces, both Yamana and Hosokawa felt ready to engage the other, and skirmishes began to break out.
In 1467, the first year of
Ōnin
was a after ''Bunshō'' and before ''Bunmei''. This period spanned the years from March 1467 through April 1469. The reigning emperor was .
Change of era
* 1467 : The era name was changed to mark an event or a number of events. The old era end ...
by the
Japanese calendar
Japanese calendar types have included a range of official and unofficial systems. At present, Japan uses the Gregorian calendar together with year designations stating the year of the reign of the current Emperor. The written form starts with t ...
, both men began to prepare more seriously for the coming conflict; they sought safehouses and planned for fighting in the streets. Yamana took Yoshimi to the shōgun's residence, where Hosokawa, who supported Yoshimi's claim to the shogunate, could not get at him. He was essentially a hostage.
Seeing that open war in the capital would spread to the provinces, the shōgun declared that the first to make an attack within the city would be labeled a rebel against the shogunate, and enemy of the state. Thus, for several months, the conflict quieted, neither side willing to make a move. Finally, in March 1467, the home of a Hosokawa officer was destroyed by fire. After several more minor attacks and political maneuvers, in May, Hosokawa attacked outright the mansion of one of Yamana's generals. Nevertheless, Yamana, not Hosokawa, was labeled a rebel, and enemy of the state. Some of Yamana's followers deserted, joining Hosokawa's morally superior side, but many more switched sides as a result of the work of Hosokawa's emissaries to the provinces where Yamana and his allies drew their armies.
[
By New Year's of 1468, nearly a year since the war began, the fighting tapered off. For much of that year, the two forces engaged in glaring contests and limited sorties, both desiring to rebuild and to act only defensively. Both spent the next several years in political, not military, conflict, and in 1469, the shōgun named his son Yoshihisa his heir. But Hosokawa was weary of battle, and wished for peace. However, by 1473, both Hosokawa and Yamana were dead.][
]
References
{{DEFAULTSORT:Yamana, Sozen
1404 births
1473 deaths
Daimyo
Japanese Buddhist clergy
15th-century Japanese people
People of Muromachi-period Japan
1430s in Japan
1440s in Japan
1450s in Japan
1460s in Japan
1470s in Japan