Alexis of Russia
Solzhenitsyn has also repeatedly denounced Tsar Alexis of Russia and Patriarch Nikon of Moscow for causing the Great Schism of 1666, which Solzhenitsyn says both divided and weakened the Russian Orthodox Church at a time when unity was desperately needed. Solzhenitsyn also attacked both the Tsar and the Patriarch for using excommunication, Siberian Exile, imprisonment torture, and even burning at the stake against the Old Believers, who rejected the liturgical changes which caused the Schism.