 Helena of Bulgaria, Empress of Serbia

Helena of Bulgaria, Empress of Serbia (, ; c. 1315–1374) was a Bulgarian princess, the daughter of Sratsimir of Kran and Keratsa Petritsa and the sister of tsar (emperor) Ivan Alexander of Bulgaria, who married Serbian King and later Emperor Stefan Dušan (r. 1331–55).Stefan Dušan was crowned King of Serbia at Svrčin on 8 September 1331 (Nativity of the Theotokos).