Peter the Great was the Russian leader that did the most to westernize Russia.
All of them are westernized.
He westernized Russia
They modernized and westernized Russia to European standards.
Peter I (Peter the Great) is the Tsar who westernized Russia.
Peter the Great contributed most, including reving arts, building up the Navy, and moving the capitol from Moscow to St.Petersburg. Catherine the Great was also a leader that seeked to advance Russia, but wasn't taken too seriously, being a woman. A series of weak tsars afterwards resulted in Russia actually going backwards to feudalism.
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Peter the Great 'westernized' Russia by introducing European technical knowledge, fashion and ideas to Russia; Alexander II abolished serfdom in Russia, freeing some 15 million people from slavery.
Joseph Stalin was the leader of Russia in 1939.
Hitler was never the leader of Russia.
An elected President.
Lenin