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In page Irmengard of the Rhine:

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Countess Palatine Irmengard of the Rhine, also known as Irmengard of Baden (c. 1200 – 24 February 1260) was Margravine of Baden by her marriage to Herman V, Margrave of Baden-Baden.[citation needed] She is known as the founder of the Lichtenthal Abbey, a Cistercian nunnery that has operated without interruption since 1245.[1]