Кузьма Минин
Amidst anarchy and breakdown of central government, citizens of Nizhny Novgorod led by Kuzma Minin assembled the Second People's Militia, under the command of Prince Dmitry Pozharsky. Well-armed and organized, the Second People's Militia took Yaroslavl in March of 1612 and set up a provisional government of all Russia, getting support and provisions from many cities of Russia and Siberia. Getting news that a Polish relief army under Hetman Chodkiewicz was approaching Moscow, Minin and Pozharsky entered Moscow in August 1612 and besieged the Polish garrison in the Kremlin.