Pskov (Псков; see also names in other languages) is a city in northwestern Russia and the administrative center of Pskov Oblast, located about east of the Estonian border, on the Velikaya River. Population: Pskov is one of the oldest cities in Russia. During the Middle Ages, it served as the capital of the Pskov Republic and was a trading post of the Hanseatic League before it was incorporated into the Grand Duchy of Moscow and became an important border fortress in the Tsardom of Russia. Timeline of Pskov Pskov is one of the oldest cities in Russia. The name of the city, originally Pleskov (historic Russian spelling Плѣсковъ, Plěskov), may be loosely translated as "[the town] of purling waters". It was historically known in English as Plescow. Its earliest mention comes in 903, which records that Igor of Kiev married a local lady, Olga (later Saint Olga of Kiev). Pskovians sometimes take this year as the city's foundation date, and in 2003 a great jubilee took place to celebrate Pskov's 1,100th anniversary. The first prince of Pskov was Vladimir the Great's youngest son Sudislav. Once imprisoned by his brother Yaroslav, he was not released until the latter's death several decades later. In the 12th and 13th centuries, the town adhered politically to the Novgorod Republic. In 1241, it was taken by the Teutonic Knights, but Alexander Nevsky recaptured it several months later during a legendary campaign dramatized in Sergei Eisenstein's 1938 movie Alexander Nevsky. In order to secure their independence from the knights, the Pskovians elected a Lithuanian prince, named Daumantas, a Roman Catholic converted to Orthodox faith and known in Russia as Dovmont, as their military leader and prince in 1266. Having fortified the town, Daumantas routed the Teutonic Knights at Rakvere and overran much of Estonia. His remains and sword are preserved in the local kremlin, and the core of the citadel, erected by him, still bears the name of "Dovmont's town". Pskov Republic By the 14th century, the town functioned as the capital of a de facto sovereign republic.