"Aleksey Mikhailovich (Russian: Алексе́й Миха́йлович, IPA: [ɐlʲɪˈksʲej mʲɪˈxajləvʲɪtɕ]; 19 March [O.S. 9 March] 1629 – 8 February [O.S. 29 January] 1676) was the Tsar of Russia from 1645 until his death in 1676. His reign saw wars with Poland and Sweden, schism in the Russian Orthodox Church, and the major Cossack revolt of Stenka Razin. Nevertheless, at the time of his death Russia spanned almost 2,000,000,000 acres (8,100,000 km2)." - (en.wikipedia.org 31.01.2020)
