Lomonosov is a municipal town in Petrodvortsovy District of the federal city of Saint Petersburg, Russia, located on the southern coast of the Gul…Lomonosov is a municipal town in Petrodvortsovy District of the federal city of Saint Petersburg, Russia, located on the southern coast of the Gulf of Finland, 40 kilometers west of Saint Petersburg proper. Population: 42,505 ; 37,776. Lomonosov is the site of the 18th-century royal Oranienbaum park and palace complex, notable as being the only palace in the vicinity of Saint Petersburg that was not captured by Nazi Germany during World War II.