Russian Blonde Girl On The Roof Of The House With Saint Basil's Cathedral In Background

Ivan's order
The site of the cathedral has been, historically, a busy marketplace between the St. Frol's (later Saviour's) Gate of the Moscow Kremlin and the outlying posad. The center of the marketplace was marked by the Trinity Church, built of the same white stone as the Kremlin of Dmitry Donskoy (1366–1368) and its cathedrals. Tsar Ivan IV marked every victory of the Russo-Kazan War by erecting a wooden memorial church next to the walls of Trinity Church; by the end of his Astrakhan campaign it was literally shrouded within a cluster of seven wooden churches. According to the sketchy report in Nikon's Chronicle, in the autumn of 1554 Ivan ordered construction of a wooden Church of Intercession on the same site, "on the moat". One year later Ivan ordered construction of a new stone cathedral on the site of Trinity Church that would commemorate his campaigns. Dedication of a church to a military victory was "a major innovation" for Muscovy. The placement of the church outside of the Kremlin walls was a political statement in favour of posad commoners, and against hereditary boyars.
Chronists clearly identified the new building as Trinity Church, after its easternmost sanctuary; the status of "sobor" (cathedral) has not been bestowed on it yet: