In 1652 Havryil Kolenda was consecrated a bishop with the title of bishop of Mstsislaw by his Metropolitan Antin Sielava.
After a couple of years of truce, in 1654 the Cossacks allied with the Russian tsar in the Treaty of Pereyaslav which led to the Russo-Polish War (1654-1667), to which added the Second Northern War (1655-60) with the invasion from Sweden.