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Isabella of Hainaut

Isabella of Hainaut (c. 1323–1361) was a daughter of William I the Good, Count of Hainaut, and Joan of Valois, and sister of Queen Philippa of England. In 1354 she married Robert of Namur, later a Knight of the Garter; the marriage was childless.

References

  1. en.wikipedia.org/wiki/William_I,_Count_of_Hainaut
  2. en.wikipedia.org/wiki/Robert_of_Namur_(1323–1391)