1672-1725. Tsar of Russia from 1682 on the death of his brother Tsar Feodor, he assumed control of the government 1689. He attempted to reorganize the country on Western lines; the army was modernized, a fleet was built, the administrative and legal systems were remodelled, education was encouraged, and the church was brought under state control. On the Baltic coast, where he had conquered territory from Sweden, Peter built his new capital, St Petersburg (now Leningrad). After a successful campaign against the Ottoman Empire 1696, he visited Holland and Britain to study Western techniques, and worked in Dutch and English shipyards. In order to secure an outlet to the Baltic, Peter undertook a war with Sweden 1700-21, which resulted in the acquisition of Estonia and parts of Latvia and Finland. A war with Persia 1722-23 added Baku to Russia.