The House of Limburg is a noble family that originated in the region of Limburg, which is now part of modern-day Belgium and Netherlands. This house played a significant role in the medieval history of the Low Countries, particularly during the 11th and 12th centuries. Members of the family held various titles and lands, contributing to the political landscape of the time. The most notable member of the House of Limburg was Henry I, who became the Duke of Brabant. The family's influence extended beyond their immediate territories, as they were involved in various alliances and conflicts with other noble houses, shaping the history of the region.