Coronation of the Russian monarch
The coronation of the emperor of Russia (generally referred to as the Tsar) from 1547 to 1917, was a highly developed religious ceremony in which he was crowned and invested with regalia, then anointed with chrism and formally blessed by the church to commence his reign. Although rulers of Muscovy had been crowned prior to the reign of Ivan III, their coronation rituals assumed overt Byzantine overtones as the result of the influence of Ivan's wife Sophia Paleologue, and the imperial ambitions of his grandson, Ivan the Terrible.
Source: Wikipedia — Coronation of the Russian monarch (CC BY-SA 4.0)