황궁
Katsura was involved but not present in the Hamaguri Gate Rebellion on 20 August 1864, with the unsuccessful attempt to capture the Emperor Kōmei by the Chōshū forces at Hamaguri Gate in order to restore the Imperial household to its position of political supremacy, the Chōshū forces clashed with Aizu and Satsuma forces who led the defense of the Imperial palace. During the attempt, the Chōshū rebels put Kyoto on fire, starting with the residence of the Takatsukasa family, and that of a Chōshū official.