Lake Ladoga Stolbovo, the northern and western coast was ceded by Russia to Sweden. In 1721, after the Great Northern War, it was restitution to Russia by the Treaty of Nystad. Later, in 1812–1940 the lake was shared between Finland and Russia. According to the conditions of the 1920 Tartu Peace Treaty militarization of the lake was severely restricted. However, both Soviet Russia and Finland had flotillas in Ladoga (see also Finnish Ladoga Naval Detachment). After the Winter War (1939–40) according to the Moscow Peace Treaty, Ladoga, previously shared with Finland, became an internal basin of the Soviet Union. During the Continuation
Staraya Ladoga the Volkhov River.The fortress was rebuilt at the turn of the 15th and 16th centuries. In 1703, Peter the Great founded the town of Novaya Ladoga (New Ladoga) closer to the bank of Lake Ladoga. The ancient fortress thenceforth declined and came to be known as Staraya Ladoga (Old Ladoga), in order to distinguish it from the new town. The mid-12th-century churches of St. George and of Mary's Assumption stand in all their original glory. Inside St. George's, some magnificent 12th-century frescoes are still visible. In addition, there is a mid-12th-century church of St. Climent, which stands in ruins. There