The youngest child and only son of Tsar Nicholas II and his wife Tsarina Alexandra was Alexei. As their only son, Alexei was the heir to the throne of the Russian Empire. Unknown to the public Alexei was born with haemophilia which was an incurable disease; the future of the Romanov Dynasty was is crisis. In 1905 Tsarina Alexandra turned to Grigori Rasputin.
Rasputin was a peasant from Siberia and was known to have healing powers. The first time Rasputin was called upon to assist Alexei with his suffering, it appeared to work. This pleased Nicholas and Alexandra very much and Rasputin was invited time and time again to the Alexander Palace. Rasputin was a known philanderer, and rumours began to surface that Rasputin was having an affair with Tsarina Alexandra. Nicholas II knew about the rumours and although it wasn’t doing Imperial Russia any favours publicly, he knew behind closed doors, Rasputin could hold the keys to the future of the Romanov dynasty.
The First World War began in 1914 and Russia was at war. Rasputin a man of peace undoubtedly had a strong influence over Nicholas II and expressed his desire for a peace treaty. This alarmed both British and Russian spies, the death of Rasputin’s became inevitable.
One theory is that Felix Yusupov invited Rasputin to the Yusupov Palace in an attempt to murder him. While Rasputin tried to escape after Yusupov shoots him, another conspirer Vladimir Purishkevich allegedly ends the monks life, with a bullet in the back of the head.
Another theory is that British M16 agent Oswald Rayner who was operating in Russia during The First World War and was present on the night, and he actually pulled the final trigger that ended Rasputin’s life. Britain’s motive for doing such a thing was simply to keep Russia in the war as an important ally, at the cost of a monk, that was allegedly keeping the Romanov dynasty alive.
Either way Rasputin’s body was thrown into the river, only to be discovered three days later. Then
Within a year Tsar Nicholas II ,Tsarina Alexandra and their five children were brutally murdered as the Bolsheviks siezed power.
Source – National Geographic, Mystery Files, Link