Judith of Brittany was a notable figure in the 9th century, known for her role as a noblewoman and her connections to the Carolingian dynasty. Born around 843, she was the daughter of Conan I, Duke of Brittany and became a significant political player through her marriages and alliances. Judith is best remembered for her marriage to Baldwin I of Flanders, which helped strengthen ties between Brittany and Flanders. Her life reflects the complexities of noble alliances during the early medieval period, showcasing the importance of marriage in political strategy and regional power dynamics.