Overview
Euphrosyne of Opole (1228/30 – 4 November 1292) was a daughter of Casimir I of Opole and his wife Viola, Duchess of Opole. She was a member of the House of Piast and became Duchess of Kuyavia from her first marriage and Duchess of Pomerania from her second marriage. She acted as regent during the minority of her sons.
Family
Euphrosyne's paternal grandparents were Mieszko I Tanglefoot and his wife Ludmilla, a disputed Bohemian princess from the Přemyslid dynasty. Mieszko was son of Władysław II the Exile, Duke of High Poland and his wife Agnes of Babenberg. Agnes was daughter of Leopold III, Margrave of Austria and his wife Agnes of Germany, who was a daughter of Henry IV, Holy Roman Emperor and his first wife Bertha of Savoy.
Euphrosyne's maternal family are disputed. Some believe her mother, Viola was a Bulgarian princess, daughter of either Kaloyan of Bulgaria or his successor Boril of Bulgaria. Boril was married to a Cuman women named Anna. The historian J. Horwat put forward another hypothesis, under which Viola could be a Hungarian princess, daughter of King Béla III (from his second marriage with Marguerite of France), or his son and successor Emeric. Today, the opinion prevails that Viola's origins are considered unknown.
Euphrosyne was the youngest of four children. She had two brothers and a sister: Mieszko II the Fat, Władysław Opolski and Wenzeslawa of Opole, who became a nun.
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