sentences:  It was quite unique and different from the contemporary Renaissance architecture elsewhere in Europe, though some researches call that style 'Russian Gothic' and compare it with the European Gothic architecture of the earlier period.The Italians, with their advanced technology, may have influenced the appearance of the stone tented roof in Russia (the wooden tents were known in Russia and Europe long before).According to one hypothesis, an Italian architect called Petrok Maly may have been an author of the Ascension Church in Kolomenskoye, one of the earliest and most prominent tented roof churches.