On April 13th of the 3rd Year of Bunkyu, Hachiro was attacked by 6 assassins of the Shogunate, including Tadasaburo SASAKI and Shigeaki KUBOTA, at Azabu Ichinohashi, and was beheaded.
文久3年4月13日幕府の刺客、佐々木只三郎、窪田鎮章など6名によって麻布一ノ橋で討たれ首を切られた。