Which Russian revolutionary leader took control of the government November 1917?

Prince Georgi Lvov and later Alexander Kerensky led the Russian Provisional Government during the time between the two revolutions. Lvov headed it when it was first formed after the first revolution. Three months late he resigned and Alexander Kerensky took over. Three months after than Lenin and the Bolsheviks staged the October Revolution and ousted Kerensky and the entire Provisional Government.