The two crossword solutions for the term 'Southern Russian City' are Omsk and Orel. Omsk is a city located in southwestern Siberia, Russia, and is the administrative center of Omsk Oblast. It is the second largest city in Siberia after Novosibirsk. Orel is a city located in the Central Federal District of Russia, and is the administrative center of Oryol Oblast. It is one of the oldest cities in Russia, having been founded in 1566.