In 1814, he participated in the battles of Brienne, La Rothière, and Champaubert, where he was wounded and taken prisoner by the French together with his corps commander General Zakhar Olsufiev. From captivity released after the capture of Paris. Returned to his brigade. July 29, 1817 he was appointed commander of the 3rd Brigade of the 23rd Infantry division. He continued his service in France as part of the corps of Mikhail Vorontsov until 1818. After returning to Russia, he was appointed commander of the 2nd brigade of the 9th Infantry Division. The officers and soldiers of the Nasheburgsky regiment, according to the memoirs of a contemporary, wept at parting with Poltoratsky, he deserved so much love and disposition of his subordinates. March 13, 1822 he was appointed to "patronize the army". On January 28, 1830, he was renamed as Privy Councillor and appointed as Yaroslavl Civil Governor. On February 18, 1835, he received the rank of lieutenant general and was renamed as the Yaroslavl Military Governor with civilian control. Made a lot of useful for the development of education and charity in the Yaroslavl Province. In 1842 he retired for health reasons. In last years he lived in Saint Petersburg, where he died on March 15, 1858 and was buried in the Coastal Monastery of Saint Sergius.