Yermak Timofeyevich was a Cossack ataman and is today a hero in Russian folklore and myths. During the reign of the Russian tsar Ivan the Terrible, Yermak started the Russian conquest of Siberia.
Messengers from Yermak at the Red Porch in front of Ivan the Terrible; by Stanisław Jakub Rostworowski
Yermak used river portages to get from the Chusovaya River to the Tagil River
Vasily Surikov's 1895 painting "Yermak's Conquest of Siberia".
Ivan IV Vasilyevich, commonly known as Ivan the Terrible, was Grand Prince of Moscow and all Russia from 1533, and Tsar of all Russia from 1547 until his death in 1584. He was the first Russian monarch to be crowned as tsar.
16th century portrait of Ivan by Hans Weigel
Portrait of Ivan IV by Viktor Vasnetsov, 1897 (Tretyakov Gallery, Moscow)
The Oprichniki by Nikolai Nevrev (1888). The painting shows the last minutes of boyarin Feodorov, who was arrested for treason. To mock his alleged ambitions on the tsar's title, the nobleman was given tsar's regalia before his execution.