The ans is - Ivan the Terrible
The 1812 Fire of Moscow, on 14 September 14 1812, broke out after most residents and Russian troops had abandoned the city, and whose troops had entered it?
After the death of his elder brother Tsar Aleksandr I, Grand Duke Konstantin Pavlovich was declared Emperor of all the Russias on 1 December 1825. How long did his time on the throne last?