Question: What is the name of this faction of the Marxist Russian Social Democratic Labour Party, which split from the Menshevik faction and who killed Alexander Bagration of Mukhrani?
Sentence (from "Alexander Bagration of Mukhrani"): A general in the Imperial Russian service and member of the tsar Nicholas II’s immediate circle, he was killed by the Bolsheviks in the post-revolution turmoil in Russia.
Relevant evidence: Yes