Volkonsky was promoted Major General after the Battle of Großbeeren and Battle of Dennewitz. He was wounded in the Battle of Eylau. He was the only general still in active service who took part in the Decembrist conspiracy of 1825, an attempt to achieve liberal reform by preventing the accession of Tsar Nicholas I. Following the failure of the revolt, he was found guilty and sentenced to beheading, which was eventually commuted to life in prison. Prince Volkonsky went to toil in the mines near Irkutsk and spent 30 years as a political exile in Siberia. His wife Maria Rayevskaya followed him to Siberia. Their tribulations and hardships have been seen, in a later Russian tradition, as the stuff of high Romantic legend. Nikolay Nekrasov described them in a long poem. Oleg Strizhenov played the part of Volkonsky in the 1975 Soviet film "The Captivating Star of Happiness".