Helena Angelina Doukaina
Helena Angelina Doukaina (c. 1242–1271) was a Byzantine princess, daughter of Michael II Komnenos Doukas, despot of Epirus. In 1259 she married King Manfred of Sicily, sealing an Epirote-Sicilian alliance; her dowry brought him Durazzo, Corfu and other Albanian towns.
After Manfred was killed at the Battle of Benevento in 1266, she tried to flee with her children but was seized by the Angevins. Charles I of Anjou imprisoned her at Nocera Inferiore, where she died in 1271.