Toshizo went to Edo and directly negotiated with Kaishu KATSU and others and pleaded them to spare KONDO's life, but he was not successful; KONDO was executed (beheaded) on April 25 1868, at a place close to Itabashi (currently, his tomb is located in front of JR Itabashi Station).
歳三は江戸へ向かい勝海舟らに直談判し近藤の助命を嘆願したが実現せず、慶応4年（1868）4月25日、近藤は板橋近辺（現JR板橋駅前に墓所有り）にて処刑（斬首）される。