Durin Catherine's municipal reform o 1777, Petrovskaya Sloboda wi incorporatit as a toun, whaurupon its name wis chyngit tae Petrozavodsk. A new Neoclassical ceety centre wis then built, focused on the newly-planned Roond Square. In 1784 Petrozavodsk wis lairge enough tae supplant Olonets as the admeenistrative centre o the region. Although Emperor Paul abolished Olonets Govrenorate, it wis revivit as a separate guberniya in 1801, wi Petrozavodsk as its admeenistrative centre.