. "27,000" . . "15pxTsardom of Russia" . "4,000 Cossacks (500 officially registered)" . . "Siege of Pskov"@en . . "15pxPolish\u2013Lithuanian Commonwealth" . "Peace of Yam-Zapolsky" . "The Siege of Pskov, known as the Pskov Defense in Russia (Russian: \u043E\u0431\u043E\u0440\u043E\u043D\u0430 \u041F\u0441\u043A\u043E\u0432\u0430), took place between August 1581 and February 1582, when the army of the Polish king and Grand Duke of Lithuania Stephen B\u00E1thory laid an unsuccessful siege and successful blockade of the city of Pskov during the final stage of the Livonian War of 1558\u20131583.The first detachments of the Polish\u2013Lithuanian army, which in the previous two years captured Polotsk (1579) and Velikiye Luki (1580), appeared at the walls of Pskov on August 18, 1581. "@en . "15pxPrincipality of Transylvaniaand foreign mercenaries" . . "Russian pyrrhic victory" . "16,000" . . . "1581-09-08Z"^^ . .