Michael I of Russia (Russian: Михаи́л Фёдорович Рома́нов, Mikhail Fyodorovich Romanov) (22 July [O.S. 12 July] 1596 – 23 July [O.S. 13 July] 1645) became the first Russian Tsar of the house of Romanov after the zemskiy sobor of 1613 elected him to rule the Tsardom of Russia. He was the son of Feodor Nikitich Romanov (later known as Patriarch Filaret) and of Xenia (later known as "the great nun" Martha). He was also a nephew of Feodor I (the last Rurikid Tsar) through his aunt Anastasia Romanovna (his paternal grandfather's sister) and through marriage with Tsar Ivan IV of Russia. His accession marked the end of the Time of Troubles of 1598-1613.

Michael's grandfather, Nikita, was brother to the earlier Tsarina Anastasia and a central advisor to Ivan the Terrible. As a young boy, Michael and his mother had been exiled to Beloozero in 1600. This was a result of the recently elected Tsar Boris Godunov, in 1598, falsely accusing his father, Feodor, of treason. This may have been partly because Feodor had married Ksenia Shestova against Boris' wishes. Michael was unanimously elected Tsar of Russia by a national assembly on 21 February 1613, but the delegates of the council did not discover the young Tsar and his mother at the Ipatiev Monastery near Kostroma until 24 March. He had been chosen after several other options had been removed, including royalty of Poland and Sweden. Initially, Martha protested, believing and stating that her son was too young and tender for so difficult an office, and in such a troublesome time.

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