Margaret of Alsace (c. 1135–1194)

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Margaret of Alsace (c. 1135–1194)

Countess of Hainault and ruler of Flanders . Name variations: Margareta of Alsace; Marguerite. Born around 1135; died on November 15, 1194; daughter of Sybilla of Anjou (1112–1165) and Theodore of Alsace (also known as Didrik, Dietrich, or Thierry), count of Flanders (r. 1128–1157); sister of Philip of Alsace, count of Flanders (r. 1157–1191); married Baudouin also known as Baldwin V, count of Hainault (Baldwin VIII of Flanders); children: Isabella of Hainault (1170–1190); Baudouin also known as Baldwin IX (1171–1205), count of Flanders and Hainault (r. 1195–1205), also crowned Baldwin I, emperor of Constantinople; Yolande of Courtenay (d.1219), empress of Constantinople; Philip of Namur.

Margaret of Alsace was born around 1135, the daughter of Sybilla of Anjou and Theodore of Alsace. Margaret succeeded her brother Philip of Alsace as ruler of Flanders when he died in 1191. She died in 1194.