The Dukes of Béarn were a noble family that ruled the region of Béarn in southwestern France. This title was established in the 14th century and was closely associated with the Kingdom of Navarre. The dukes played a significant role in the political landscape of the region, often navigating complex alliances and conflicts. The most notable duke was Henry IV of France, who was born in Béarn and became king in 1589. The dukes were influential in promoting the Protestant Reformation in France and were key figures in the French Wars of Religion. Their legacy continues to be recognized in the history of both Béarn and France.