In 1439, at the Council of Florence, some Orthodox hierarchs from Byzantium as well as Metropolitan Isidore, who represented the Russian Church, signed a union with the Roman Church, whereby the Eastern Church would recognise the primacy of the Pope. However, the Moscow Prince Vasili II rejected the act of the Council of Florence brought to Moscow by Isidore in March 1441. Isidore was in the same year removed from his position as an apostate and expelled from Moscow. The Russian metropolitanate remained effectively vacant for the next few years due largely to the dominance of Uniates in Constantinople then. In December 1448, Jonas, a Russian bishop, was installed by the Council of Russian bishops in Moscow as Metropolitan of Kiev and All Russia (with permanent residence in Moscow) without the consent from Constantinople. This occurred five years prior to the fall of Constantinople in 1453 and, unintentionally, signified the beginning of an effectively independent church structure in the Moscow (North-Eastern Russian) part of the Russian Church. Subsequently, there developed a theory in Moscow that saw Moscow as the Third Rome, the legitimate successor to Constantinople, and the Primate of the Moscow Church as head of all the Russian Church. Meanwhile, the newly established in 1458 Russian Orthodox (initially Uniate) metropolitanate in Kiev (then in the Grand Duchy of Lithuania and subsequently in the Polish–Lithuanian Commonwealth) continued under the jurisdiction of the Ecumenical See until 1686, when it was transferred to the jurisdiction of Moscow.