Original: Grigori Yefimovich Rasputin ( ) ( -- ) was a Russian mystic who is perceived as having influenced the later days of the Russian Tsar Nicholas II , his wife the Tsaritsa Alexandra , and their only son the Tsarevich Alexei .
Simplified: Rasputin played a part in the lives of the Tsar Nicholas II , his wife , the Tsarina Alexandra and their only son , the Tsarevich Alexei .