152 THE DECLINE OF THE KAMAKURA BAKUFU
gauge the extent of Yasumori's influence by noting that five out of
sixteen
hydjoshu
members and seven out of thirteen
hikitsuke
elected to
join with the Adachi.
27
The repercussions from this incident were felt throughout Japan. In
Hakata, the second son of Yasumori, Adachi Morimune, who had
replaced his father as the deputy
shugo
of Higo, was murdered. Also,
in the scattered provinces of Hitachi, Totomi, Shinano, and Harima,
Yasumori's sympathizers were killed. Not long after, Muto Kagesuke,
the commander who had led Takezaki Suenaga, rebelled at Iwato
Castle in Chikunzen, which had been built as a fortress against the
Mongols. The Muto, along with many warriors from northern
Kyushu, were defeated in the battle of Iwato.
28
Autocratic rule by Taira Yoritsuna, a miuchibito
representative
The immediate outcome of the Shimotsuki incident was the concentra-
tion of political power in the hands of Taira Yoritsuna, the leader of the
miuchibito.
A courtier's diary described the situation: "Yoritsuna alone
holds power and all live in fear."
29
Yoritsuna himself was said to be a
great-grandson of Taira Morikuni who had served Kiyomori during
the latter's period of ascendancy. At the time of the Taira defeat,
Morikuni was taken to Kamakura as a hostage and placed in the
custody of the Miura. Subsequently, Yoritsuna's father, Moritsuna,
served Hojo Yasutoki and wielded significant power as manager of the
Hojo household. Yoritsuna rose by serving Hojo Tokimune, and his
wife was the wet nurse to Tokimune's son Sadatoki. Yoritsuna thus
held all the requisite qualifications to be the head
miuchibito.
Who were these
miuchibito?*
0
From the time of Hojo Yasutoki, the
notable
miuchibito
houses were the Bito, Ando, Suwa, Nanjo, and
Seki. Their residences were located inside Yasutoki's mansion. The
families themselves came mostly from outside the east and were origi-
nally incorporated into the Hojo household during the early thirteenth
27 Taga Munehaya was the first to focus on the Shimotsuki incident and analyze it in detail. See
"Hojo shikken seiji no igi," in his Kamakura jidai no shiso to bunka, pp. 288-320. Sato
Shin'ichi clarified the incident's historical significance in his Kamakura bakufu
sosho
seido no
kenkyu, pp. 76-78, 96-97. Also see Ishii Susumu, "Shimotsuki sodo oboegaki," in
Kanagawa ken sin dayori,
shiryo
hen vol. 2 (Yokohama: Kanagawa ken, 1973), pp, 1-4.
28 For a detailed study of this battle, see Kawazoe Shoji, "Iwato gassen saihen - Chinzei ni
okeru tokuso shihai no kyoka to Muto shi," in Mori Katsumi hakase koki kinen kai, ed.,
Taigai kankei to seiji bunka, vol. 2 of Shigaku ronshu (Tokyo: Yoshikawa kobunkan, 1974),
pp.
217-49. 29 "Sanemi kyoki," 1293/4/26.
30 The classic study of miuchibito appears in Sato, Kamakura bakufu
sosho
seido no kenkyu, pp.
104-21.
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