Ruthenian Uniate Church



The Ruthenian Uniate Church is a historical church that existed in the Polish–Lithuanian Commonwealth following the Union of Brest and was mostly dissolved following partition of the Commonwealth, with most of the church eparchies being forcibly converted to Russian Orthodoxy.
Following the partition of the Polish–Lithuanian Commonwealth, the church mostly dissolved within territory that was annexed by the Russian Empire. On territory that was annexed by the Austrian Empire, the church was preserved, but was reorganized as a Greek Catholic Church under a Galician Metropolitan. Today, it survives as the Ukrainian Greek Catholic Church, the Belarusian Greek Catholic Church, the Ruthenian Greek Catholic Church, and the Russian Greek Catholic Church.
Creation of the church led to high degree of confrontation among Ruthenians, such as the murder of Josaphat Kuntsevych. The Union of Brest that was also perceived as part of Catholisation and Polonization processes contributed to the Khmelnytsky Uprising.

Composition (eparchies)

;Russian Empire
;German Empire
;Austrian Empire
Metropolitans of Kyiv, Galicia and all Ruthenia: