Category
page 1Ruthenian Uniate Church
Union of Brest
Subordination of the Russian Orthodox clergy to the Catholic clergy in Poland-Lithuania
Union of Uzhhorod
1646 religious union
Ruthenian Uniate Church
Historical precursor of the Ukrainian and Belarusian Greek Catholic Churches
Synod of Polotsk
Synod of Zamość
it is considered a crucial event