In 1666, Patr. Paisius was invited to Moscow, Russia by Tsar Alexis to preside over the Council of Moscow of 1666-1667. Those at the council included Patriarchs [[Macarius III (Zaim) of Antioch|Macarius III of Antioch]] and Joasaph of Moscow, Metropolitans Athanasius of Iconium (representing the Ecumenical Patriarch), Ananias of Sinai (representing the Patriarch of Jerusalem), and several [[bishop]]s and priests. The council affirmed the revised religious and liturgical reforms of the Russian Church, while anathematizing those of the [[Old Believers||Old Ritualists]], who opposed the reforms and the old Russian books and rites, and for refusing to comply with corrections made in order to comply with the Church's liturgical unity.