Ansei Purge

• Ansei 5 (1858): Beginning of arrests of troublemakers by order of Ii Naosuke.
• Ansei 6 (1859): Arrests and investigations continuing.

• Ansei 7 (March 3, 1860): Ii Naosuke assassinated, also known as "the Sakurada-mon Incident.

The purge was carried out by Ii Naosuke in an effort to quiet opposition to his handling of the question of shogunal succession and the signing of the U.S.-Japan Treaty of Amity and Commerce.

Those prosecuted at the purge include:

• Matsudaira Yoshinaga - head of Fukui Domain
• Date Munenari - head of Uwajima Domain
• Yamanouchi Toyoshige - head of Tosa Domain

References

• Kusunoki Sei'ichirō (1991). Nihon shi omoshiro suiri: Nazo no satsujin jiken wo oe. Tokyo: Futami bunko.

External links

• National Diet Library, photograph of Sakurada-mon (1900)