Irene Kantakouzene
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Irene Kantakouzene (Greek:Ειρήνη Καντακουζηνή, [iriˈni kantakusini']; c. 1400–May 3, 1457), known simply as Despotess Jerina (Serbian Cyrillic:деспотица Јерина), was the wife of Serbian Despot Đurađ Branković. In Serbian folk legends, she is the founder of many fortresses in Serbia.