Olga of Kiev - first slavic queen (945 - 960 AC). In 945 her husband, was killed by Drevlians's tribe, so she went full on revenge killing spree. Olga bruttaly murdured Drevlan's ambasadors and nobility, destroyed their cities... Legend says she used pigeons to burned their capital to the ground. Olga is still an example that you don't want to piss of slavic womans...