On 11 September 1703, Prince Menshikov foondit the dounset o Petrovskaya Sloboda (""Petrine Sloboda""). He did so at the behest o Tsar Peter the Great, who needit a new iron foondry tae manufactur cannons an anchors for the Baltic Fleet at the time o the Great Northren War (1700–1721). At first the foondry uised the name Shuysky zavod (literally, ""factory at the Shuya River""), but a decade later it became Petrovsky zavod (""Petrine factory""), efter the name o the reignin monarch. Frae this form the present name o the ceety derives.