Grigori Yefimovich Rasputin (Russian: Григорий Ефимович Распутин) was a Russian peasant, mystical faith healer and a trusted friend to the royal family of the last Tsar of Russia. In fact, there is much uncertainty over his life and degree of influence he exerted over the royal family.

However, most historians say that his influence and position may have been exaggerated, though his presence really played an important role in the increasing unpopularity of the Imperial couple.

More Info: en.wikipedia.org