16 May) 1805 in Bogorodickoye, Oryol Governorate, Russian Empire – 8 June (N.S.
His major contributions to Russian historiography include the publication of several key sources on the Russian Tsardom such as Jacques Margeret's memoir (1830), the collection of reminiscences about False Demetrius I (1831), and Andrey Kurbsky's complete writings (1833).
[1] The American Cyclopaedia (1873–1876) cites Ustryalov as the author of The History of Russia (German translation, 3 vols., Stuttgart, 1840), which "urges the gradual Russification of all the non-Russian tribes of the empire and has been officially introduced as a textbook into the Russian colleges".
[2] Ustryalov's lectures in the University of St. Petersburg grew increasingly unpopular with students during Alexander II's liberal reign.
He spent the latter part of his life working on the ten volumes of The History of Peter the Great's Reign, of which however only volumes 1-4 and 6 were completed.