The bakufu intervened and prevented another rendition of the Ōnin War. By 1671, however, many of the former regents were either dead or retired, and Ietsuna began to rule in his own right. Following the succession dispute of the Date, very few disturbances occurred for the remainder of Ietsuna's reign, except some defiant "daimyōs". In 1679, "shōgun" Ietsuna fell ill. His succession began to be discussed, in which Sakai Tadakiyo took an active role. He suggested that a son of Emperor Go-Sai become the next shogun, following the precedent of the later Kamakura shoguns, who in reality were members of the blood royal. Tadakiyo probably saw himself as becoming powerful like the Hōjō regents, and thus many members of the Tokugawa blood preferred Shogun Ietsuna's younger brother Tokugawa Tsunayoshi, also a son of Shogun Iemitsu, to become "shōgun". Tadakiyo retired, embarrassed, and shortly after, Tokugawa Ietsuna died in 1680. His posthumous name was Genyū-in (厳有院) and was buried in Kan'ei-ji. He was succeeded by his younger brother, Tsunayoshi. Though Ietsuna proved to be an able leader, affairs were largely controlled by the regents his father had appointed, even after Ietsuna was declared old enough to rule in his own right. The years in which Ietsuna was "shōgun" are more specifically identified by more than one era name or "nengō".