The title "Duke of Brabant and Limburg" refers to a historical noble title associated with the regions of Brabant and Limburg in present-day Belgium and Netherlands. The title originated in the Middle Ages and was held by various rulers, including members of the House of Reginar and later the House of Habsburg. The duchies played significant roles in the political landscape of medieval Europe. The Duke of Brabant was often involved in the complex feudal system, managing lands and asserting influence over neighboring territories. The title has since become largely ceremonial, with modern descendants holding it as part of their heritage, reflecting the rich history of the Low Countries.