the Russian Empire Russian and Soviet polar explorers Explorers from the Russian Empire Estonian explorers Imperial Russian Navy admirals Governors of the Russian-American Company Circumnavigators of the globe Corresponding members of the Saint Petersburg Academy of Sciences Honorary members of the Saint Petersburg Academy of Sciences Explorers of the Arctic 19th-century explorers Members of the State Council (Russian Empire) Chukchi Sea Demidov Prize laureates Founding members of the Russian Geographical Society Ferdinand Naval Cadet Corps alumni