Elizaveta Petrovna, who favored her father's comrades-in-arms, called Cherkasov from exile to St. Petersburg, where on 10 December 1741 Ivan Antonovich was granted as
active state councillor and appointed at the court of Her Majesty "for the administration of indoor writing affairs". Years after the abolition of the Supreme Privy Council, the new autocrat restored the personal imperial office that existed under Peter I — the Cabinet of His Imperial Majesty, where Cherkasov was entrusted with the business, and he began to play a greater role at the court, occupying a position not only of the secretary’s office, but also a close friend of the empress. Through Cherkasov’s hands, practically all matters were carried out, both of national importance and of minor importance (up to the delivery of fresh grapes to the yard and others). Ivan Antonovich was literally showered with the blessings of the Empress: on 6 May 1742, the occasion of the coronation of Elizaveta Petrovna, he was elevated to baronial dignity, in 1744 he was granted villages in the
Dorogobuzh Uyezd of the
Smolensk Governorate, and in 1745 Cherkasov was promoted to
privy councillors. In 1744, Elizaveta Petrovna, interested in the production of Russian
porcelain, commissioned Ivan Cherkasov to organize the
Porcelain Manufactory and the subsequent supervision of it. Among the 10 highest dignitaries of the Russian Empire, Ivan Cherkasov also participated in the discussion of the Prussian-Saxon question (the so-called question of the Austrian legacy). On 7 September 1747 by the highest decree, he was invited to a meeting of the College of Foreign Affairs to discuss questions about the situation in
Persia. Cherkasov's letters to Count
Nikita Panin and others were printed in the Historical Bulletin (1880, Vol. I) and the Russian Archive (1882, Vol. II). ==Family==