“St. Alexander Nevski” cathedral is one of the most significant monuments of culture in Sofia. It was built between 1882 and 1912, in honour of the Russian king Alexander II, called “Tsar Osvoboditel” (“The King Liberator”), because his army helped liberate Bulgaria from Ottoman rule in 1878. The cathedral bears his name. The magnificent St. Alexander Nevsky Memorial Church is built to the designs of the Russian architect Pomerantsev in Neo Byzantine style, typical for Russia in the middle of the XIX th century.