Russia Questions??????????????????

Within decades after the Fall of Constantinople to Mehmed II of the Ottoman Empire on 29 May 1453, some were nominating Moscow as the "Third Rome", or the "New Rome". Stirrings of this sentiment began during the reign of Ivan III, Grand Duke of Moscow who had married Sophia Paleologue. Sophia was a niece of Constantine XI, the last Eastern Roman Emperor and Ivan could claim to be the heir of the fallen Eastern Roman Empire (Byzantine Empire ____aka Second Rome_______).