Grigori Rasputin

Grigori Yefimovich Rasputin was a Russian mystic living during the rule of Tsar Nicholas II, and a member of the Templars. After Nicholas's son Alexei got ill, he was advised by a family friend to ask for the help of Rasputin. Rasputin agreed to do so, knowing that Nicholas had a Piece of Eden, the Staff. After succesfully healing Alexei, he became a trusted friend, even giving advice on the decisions the royal family made.

Eventually, Rasputin came into possession of the Staff.

A group of nobles, possibly Assassins, found that Rasputin's influence on the royal family had become too much of a problem and they, led by Felix Yusupov, Dmitri Pavlovich and Vladimir Purishkevich, lured Rasputin to a 'party' in the Yusupov's Moika Palace. Rasputin was led to the cellar, where he was fed cakes and wine filled with poison. However, it seemed as though the poison was unaffective to Rasputin and Yusupov quickly consulted with the others. Coming down, he shot Rasputin through the back of the head, and, after Rasputin's body falling to the ground, the nobles fled the building. Yusupov found out he forgot his coat and went back in, where Rasputin's eyes opened and he lunged at Yusupov. The others arrived and shot him three times in the back. However, he still did not die and was trying to get back up. The conspirators beat him into submission and castrated him. They then binded his body and wrapped him in a carpet, only so that they could easily throw him into the icy Neva River. He still was not dead, but ultimately drowned in the river.

Trivia

 * Concerning Rasputin's death, he may have had the Shroud, a Piece of Eden, in his possession, which prevented him from dying easily.