Research topic: Petrokrepost

Petrokrepost , formerly Schlüsselburg , town and fortress, NW European Russia, E of St. Petersburg. The town, the terminus of a railroad and of the lateral canals on Lake Ladoga, has shipbuilding and repair yards. Opposite the town, on an island in Lake Ladoga, stands the fortress, which dominates the lake's access from the Neva River. Built in 1323 by the republic of Novgorod and at first called Oreshek, the fortress fell to Sweden in 1611 and was renamed Noteborg. Peter I captured it from the Swedes in 1702, during the Northern War, and named it Schlüsselburg [Ger.,=key... Read more