The new architect would be based on the design of Neo-Byzantinism, and would be based on Hagia Sophia (Previously the Basilica of Saint Sophia until the Fall of Constantinople), in Istanbul and in 1832 the Russian Architectural Renaissance would be approved, in the place a old Convent and Church and the first stone would be laid until 1839, the interior would be painted by the best Russian painters of the time and the scaffolding would not be removed until 1860, and the dome would be placed using the Electroplating technique, and in 1882 Tchaikovsky would premiere the "1812 Overture", even though the cathedral was half finished, it would finally be consecrated on May 26, 1883, one day after the coronation of Alexander III, its interior had paintings of Russian saints and the Napoleonic withdrawal from Moscow.