Among the Russian clergy, however, Prokopovich was known as a Lutheranist and a Calvinist against whom very energetically protested the rector of the Moscow Academy Pheophilakt Lopatinsky when Prokopovich was appointed the Metropolitan of Pskov.
Among the Russian clergy, however, Prokopovich was perceived as a Lutheranist and a Calvinist as person who studied protestantism and who did not mature in the culture of the Eastern Orthodoxy. Against him energetically protested the rector of the Moscow Academy Pheophilakt Lopatinsky when Prokopovich was appointed the Metropolitan of Pskov.