Complex sentence: The February Revolution of 1917 which overthrew the Tsarist regime came easily, as did the October Revolution which followed, which overthrew the Russian Provisional Government of Alexander Kerensky and brought Lenin and the Bolsheviks to the seat of power.
Split into simpler sentences: The February Revolution of 1917 which overthrew the Tsarist regime came easily. So, too, did the October Revolution which followed, events which overthrew the Russian Provisional Government of Alexander Kerensky and brought Lenin and the Bolsheviks to the seat of power.