Who is Father George Gapon from Nicholas and Alexandra and what is their importance?

Gapon was a priest who worked for the Minister of the Interior Plehve in trying to steer the workers away from the revolutionary movement. After his march to the Winter Palace became a massacre, he went into hiding and became a revolutionary. He was distrusted by the Socialists because of his former ties to the police and was found hanged in April 1906 in Finland.