Synod of Polotsk
The Synod of Polotsk was a local synod held on February 12, 1839, by the clergy of the Ruthenian Greek Catholic Church in the city of Polotsk for reunification with the Russian Orthodox Church. Polotsk was the center of the Greek Catholic Archeparchy of Polotsk-Vitebsk, the metropolitan seat of all Greek Catholics after the partition of the Polish-Lithuanian Commonwealth.