Early on, this monarch sat on a throne with a hole made such that his regent could overhear his conversations with nobles and feed him responses, though he would later depose that regent in a power struggle, and disband the streltsy. Bellinghausen named an Antarctic island after this ruler after he founded his country's navy. After the failure of his Grand Embassy in gaining support to fight the Ottomans, he would incite the Great Northern War and win at Poltava against Sweden. For 10 points, identify this Westernizing 
Early on, this monarch sat on a throne with a hole made such that his regent could overhear his conversations with nobles and feed him responses, though he would later depose that regent in a power struggle, and disband the streltsy. Bellinghausen named an Antarctic island after this ruler after he founded his country's navy. After the failure of his Grand Embassy in gaining support to fight the Ottomans, he would incite the Great Northern War and win at Poltava against Sweden. For 10 points, identify this Westernizing Russian tsar who founded a city later known as Leningrad.
Early on, this monarch sat on a throne with a hole made such that his regent could overhear his conversations with nobles and feed him responses, though he would later depose that regent in a power struggle, and disband the streltsy.
Peter I [accept Peter the Great] 