The Church emerged from a unification council which was convoked by the Ecumenical Patriarchate of Constantinople and took place in the St. Sophia's Cathedral on 15 December 2018<ref name="council" />. The council succeeded to unite the previously divided [[Ukrainian Orthodox Church (Kyiv Patriarchate)]], the [[Ukrainian Autocephalous Orthodox Church]] and two eparchies bishops of the [[Ukrainian Orthodox Church|Ukrainian Orthodox Church (Moscow Patriarchate)]] that is [[autonomy|autonomous]] under the [[Church of Russia]].<ref name="ocu" />. The rest of the Ukrainian Orthodox Church of the Moscow Patriarchate rejected the unification council. On 6 January 2019, a Tomos of Autocephaly was granted to the new Church by the Holy Synod of the Ecumenical Patriarchate of Constantinople<ref name="tomos" />.