History of Russia
The war ended in 1721 when an exhausted Sweden sued for peace with Russia. Peter acquired four provinces situated south and east of the Gulf of Finland, thus securing his coveted access to the sea. There, in 1703, he had already founded the city that was to become Russia's new capital, Saint Petersburg, as a "window opened upon Europe" to replace Moscow, long Russia's cultural center. Russian intervention in the Commonwealth marked, with the Silent Sejm, the beginning of a 200-year domination of that region by the Russian Empire. In celebration of his conquests, Peter assumed the title of emperor, and the Russian Tsardom officially became the Russian Empire in 1721.
Russian Empire
According to the 1st article of the Organic Law, the Russian Empire was one indivisible state. In addition, the 26th article stated that "With the Imperial Russian throne are indivisible the Kingdom of Poland and Grand Principality of Finland". Relations with the Grand Principality of Finland were also regulated by the 2nd article, "The Grand Principality of Finland, constituted an indivisible part of the Russian state, in its internal affairs governed by special regulations at the base of special laws" and the law of 10 June 1910.