Although attempts were made during the common Protestant-Orthodox congregations in Toruń in 1595 and in Vilnius in 1599, the failure of the Protestant movement to form an alliance with the Eastern Orthodox Christians, the inhabitants of the eastern portion of the Commonwealth, contributed to the Protestants' downfall.
Kuigi protestantide-õigeusklike ühiste koguduste katseid tehti Toruńis aastal 1595 ja Vilniuses aastal 1599, aitas protestantliku liikumise ebaõnn liidu moodustamiseks õigeusklike kristlastega, liitriigi idaalade elanikega kaasa protestantide langemisele.