The  was a conspiracy that took place in 866 and centered on the destruction of the main gate (Ōtenmon) of the  of the Imperial Palace in Kyoto, Japan.
ðə wʌzɐ kənspˈɪɹəsi ðæt tˈʊk plˈeɪs ɪn ˈeɪthˈʌndɹɪd sˈɪksti sˈɪks ænd sˈɛntɚd ɔnðə dᵻstɹˈʌkʃən ʌvðə mˈeɪn ɡˈeɪt ˈoʊtɛnmən ʌvðɪ ʌvðɪ ɪmpˈɪɹiəl pˈælɪs ɪn kaɪˈoʊɾoʊ, dʒəpˈæn.