Ii Naosuke
Irregularly, the "shōguns" appointed a "rōjū" to the position of "tairō" (great elder). The office was limited to members of the Ii, Sakai, Doi, and Hotta clans, but Yanagisawa Yoshiyasu was given the status of tairō as well. Among the most famous was Ii Naosuke, who was assassinated in 1860 outside the Sakuradamon Gate of Edo Castle (Sakuradamon incident).