Duke Ludwig IX, also known as Ludwig the Strict, was a prominent ruler of the Duchy of Bavaria during the late 13th century. He was born in 1260 and became Duke in 1294, known for his strong leadership and efforts to maintain order in his territory. His reign was marked by a focus on justice and the establishment of laws that aimed to improve governance. Ludwig IX was a member of the House of Wittelsbach, a significant dynasty in German history. He played a crucial role in the political landscape of Holy Roman Empire during his time, navigating complex relationships with other nobles and the emperor. His legacy includes contributions to the development of Bavaria's legal system.