Complex sentence: Originally named after the battle of Petropavlovsk of the Crimean war, renamed "Marat" after the Frech revolutionary leader Jean-Paul Marat in 1921, the ship served in the Baltic during the World War II Siege of Leningrad.
Split into simpler sentences: Originally named after the battle of Petropavlovsk of the Crimean war. Renamed "Marat" after the Frech revolutionary leader Jean-Paul Marat in 1921, the ship served in the Baltic during the World War II Siege of Leningrad.