Career
Shigenori"s daimyō family claimed descent from the Shibukawa branch of the Seiwa-Genji. Katsuhige was Shingeori"s grandfather. And Shigenori was the eldest son of Shigemasa.
Shigenori"s youth was spent in Mikawa province.
In 1615, Shigenori"s father was granted yearly revenues from Mikawa in honor of his warrior conduct during the Siege of Osaka. Shigenori was made governor of Osaka Castle and then rōjū.
His served for a time as rōjū (1665–1668), and then he left Edo for Kyoto. He served as the shogun"s representative in the capital as the fourth Kyoto shoshidai in the period which spanned July 19, 1668 through April 3, 1670.
He returned to Edo for a second term as rōjū (1670–1673).
His service to the Tokugawa shogunate was serially rewarded in Fukōzu and Mikawa-Nakajima. In 1672, he was made daimyō of Karasuyama in Shimotsuke province. Shigenori followed their examples by joining his father as part of the shogunate"s army during the Shimabara Rebellion.