Margaret II of Flanders was a notable medieval noblewoman born around 1170. She was the daughter of Baldwin V, Count of Flanders and Margaret I of Flanders. Margaret became the Countess of Flanders through her marriage to Baldwin IX, Count of Hainaut, which helped strengthen the ties between these regions. As a ruler, Margaret played a significant role in the politics of Flanders and Hainaut. She was known for her efforts to maintain peace and stability in her territories during a time of conflict. Her leadership contributed to the prosperity of the region, making her an important figure in medieval European history.