Here we'll look into the shogun's succession crisis and the purges that were orchestrated by Ii Naosuke, the last truly great elder of the Tokugawa Shogunate.

The following is a list of some of the Japanese names and terms that are used in this episode: Ansei Treaties/Purges, sonno joi, sankin kotai, Hotta Masayoshi, Ii Naosuke, Tokugawa Yoshitomi of Wakayama Domain, Tokugawa Nariaki of Mito Domain, Matsudarai Shungaku of Fukui Domain, Shimazu Nariakira of Satsuma Domain, Tokugawa Yoshinobu, Hitotsubashi Party.

Sources: The Meiji Restoration by W.G. Beasley, The Making of Modern Japan by Marius B. Jansen, A Modern History of Japan by Andrew Gordon.