Tokugawa Iemitsu
was a high-ranking government official in Japan under Tokugawa Iemitsu and Ietsuna, the third and fourth Tokugawa Shōgun. As the "daimyō" of the Oshi Domain in modern-day Saitama Prefecture, with an income of 80,000 "koku" (earlier 50,000), Abe was appointed "wakadoshiyori" (junior councillor) in 1633, and "rōjū" (Elder Councillor) shortly afterwards.