Boris Sheremetev
Boris Petrovich Sheremetev (25 April 1652 [O.S.] – 17 February 1719 [O.S.]) was a Russian boyar, diplomat, and general field marshal who served under Tsars Alexei Mikhailovich and Peter the Great, becoming the first Russian subject elevated to the rank of count in 1706 for his military and diplomatic contributions.[1][2]
Early in his career, Sheremetev commanded forces in the Crimean campaigns of the 1680s and participated in the Azov campaigns of 1695–1696 against the Ottoman Turks and Crimean Tatars, where his detachments captured the fortresses of Kyzy-Kermen, Eski-Tavan, and Aslan-Kermen.[3][4]
As supreme commander of the Russian army during the Great Northern War (1700–1721), he secured victories over Swedish forces at Erestfer in 1701 and Hummelshof in 1702, earning promotion to field marshal and the Order of St. Andrew, and directed the capture of key Ingrian strongholds including Noteborg and Nyenskans in 1703, enabling Peter the Great's founding of Saint Petersburg.[2][4][3]
Sheremetev also suppressed the Astrakhan revolt in 1705–1706 and served as senior commander at the decisive Russian victory over Sweden at Poltava in 1709, later contributing to the conquest of Riga in 1710 before commanding operations in Pomerania and Mecklenburg until 1717.[2][4]
Diplomatically, he helped negotiate the Eternal Peace Treaty with Poland-Lithuania in 1686 and undertook missions to Western Europe on behalf of Peter I.[2][4]