The article, based on materials from collection 77 "Relations between Russia and Persia" of the Russian State Archive of Ancient Acts (RGADA) (according to inventory 1, these are "Embassy Books" and so called "Stolbtsy" (correct translate will be 'a roll of paper'), covers in detail both the episode of the embassy of nobleman S. V. Volynsky and clerk S. Matveyev to Shah 'Abbas II (1642-1666), as well as its place and role in the continuity of the development of Russian-Iranian relations. The purpose of the article is to use historical and archival work to identify the connection between the said embassy and the visits of Russian and Iranian ambassadors, both earlier and later. In particular, the study of the documents ("nakazy" (orders), "rospisi" (lists) and "stateyniy spisok" (article lists)) of the "Posolskiy Prikaz" (Ambassadorial Prikaz) made it possible to establish continuity with the embassy of Mohammed Selim-bek (Mamet Selibek according to Russian documents) in 1627-1629, with the embassy of nobleman S.I. Islenyev and clerk M. K. Gryazev to Isfahan to Shah Safi I (1629-1642) in 1635-1636 and with the subsequent arrival of nobleman S.I. Kozlovsky and clerk I. Zinoviev, who were in Iran in 1646. Continuity is expressed in the transfer "by inheritance" of a number of issues, such as: compensation for damage (in connection with the robbery of Russian merchants during the uprising in Gilan in 1629, the theft of state goods by the renegade "Savka Arapov" who took Iranian citizenship), the purchase of saltpeter (niter) (in the quantities requested by the Russian side), attacks by "thieving Cossacks" on the Caspian cities in the Safavid state and many others.