Durin the Finnish occupation o East Karelie in the Continuation War (1941–1944), the occupeer chose tae style the ceety Äänislinna (or Ääneslinna), rather than the tradeetional Petroskoi. The new name wis a leeteral translation o Onegaborg, the name o a dounset markit on a 16t century map bi Abraham Ortelius near the present-day ceety, Ääninen bein the Finnish toponym for Lake Onega.