Holy Synod of Milan
The Holy Synod of Milan is the diocese for Western Europe of that Old Calendarist Greek Orthodox Church which (after receiving a hierarchy with the aid of bishops of the Russian Orthodox Church Outside Russia) was united under Archbishops Akakios and Auxentios (also known as the Florinites).
This Diocese was granted a Tomos of Autonomy in 1984 from Archbishop Auxentios in order to pursue missionary work among the non-Orthodox people of the West. The title of the Synod at this time was the Metropolia of Western Europe. After the transference of its first Chief Hierarch, Metropolitan Gabriel of Portugal, to the Autocephalous Church of Poland, Bishop Evloghios of Milan was chosen as second Chief Hierarch. Ten years later, Metropolitan Evloghios remains at the helm of the Holy Synod of Bishops. The Milan Synod uses the Julian calendar exclusively, and "firmly resists the heresies of false ecumenism and trans-religious syncretism."
Since 1997, the Milan Synod includes a number of Western Rite communities, mainly in the United States, who worship according to pre-schismatic (historically Orthodox) liturgical traditions with the support of the Metropolitan and of the Holy Synod of Bishops. The principal rite of the Synod of Milan is of course the Byzantine Rite of the Orthodox Church, celebrated most commonly in the Slavic style but in some parishes in the Greek style.