Peter the Great
While the Poles fought the Swedes, Peter founded the city of Saint Petersburg in 1703, in Ingermanland (a province of the Swedish Empire that he had captured). It was named after his patron saint Saint Peter. He forbade the building of stone edifices outside Saint Petersburg, which he intended to become Russia's capital, so that all stonemasons could participate in the construction of the new city. Between 1713 and 1728 and in 1732–1918, Saint Petersburg was the capital of imperial Russia.
Central Saint Petersburg
The Central Saint Petersburg is the oldest part of the city after the Peter and Paul Fortress. When people were starting to populate Saint Petersburg they built their houses around the almost only building outside the fortress; the Admiralty building. The largest industry was ship building. The first residence of Peter the Great was a little hut (the hut hasn't been destroyed and is a museum), but he soon started to build the Summer Palace, which was located just opposite the hut, on the other side of the Neva River, and later he built a Winter Palace for himself. The central part of the city was supposed to be between the Peter and Paul Fortress and his first house.