Matsudaira Sadamasa

Japanese: 松平定政 - まつだいら・さだまさ

Year of death: 24th November 1673 (11th January 1673)
Year of birth: 15th year of the Keicho era (1610)
Lord of Kariya Domain in Mikawa in the early Edo period. Noto no Kami. Called Fuhaku. Born in Yamashiro Fushimi as the sixth son of Matsudaira Sadakatsu, the half-brother of Tokugawa Ieyasu. In 1633 (Kan'ei 10), he became Shogun Iemitsu's Koseki, and the following year was given 5,000 koku and headed the Kosekigumi. In 1639 (Kan'ei 12), he was given the title of Ise Nagashima with 7,000 koku, and in 1640 (Kan'ei 13), he was promoted to Kinjutsu. In 1649 (Keian 2), he was given 20,000 koku of Kariya. When Iemitsu died in April 1650, he suddenly shaved his head in July, returned his territory, submitted a petition criticizing the shogunate, and begged in the city of Edo. The shogunate deemed this the work of madness and entrusted him to his brother, Matsudaira Sadayuki, Lord of Matsuyama Domain in Iyo. This was a symbol of the crisis in the shogunate government immediately after Iemitsu's death, and the Yui Shosetsu Rebellion was discovered shortly after this. Sadamasa was confined to Matsuyama, where he died. <References> Yoshiki Shinji “Masayuki Yui”

(Negishi Shigeo)

Source: Asahi Japanese Historical Biography: Asahi Shimbun Publications Inc. About Asahi Japanese Historical Biography

Japanese:

没年：寛文12.11.24(1673.1.11)
生年：慶長15(1610)
江戸前期の三河刈谷藩主。能登守。不白と号す。徳川家康の異父弟松平定勝の6男として山城伏見に誕生。寛永10(1633)年将軍家光の小性となり,翌年5000石を知行し小性組組頭。同12年伊勢長島を領し,7000石,同13年近習に進む。慶安2(1649)年刈谷2万石。同4年4月家光が死去すると,7月突如剃髪し,所領を返上して幕閣を非難した上書を提出し,江戸市中を托鉢。幕府はこれを狂気の仕業とし,兄の伊予松山藩主松平定行に預けた。家光死去直後の幕政の危機の象徴であり,この直後に由井正雪の乱が発覚している。定政は松山に蟄居し,その地で死去。<参考文献>進士慶幹『由井正雪』

(根岸茂夫)

出典　朝日日本歴史人物事典：（株）朝日新聞出版朝日日本歴史人物事典について　情報

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