Duke Leopold I of Austria, born in 1290, was a member of the House of Habsburg. He became the Duke of Austria in 1326 and played a significant role in the political landscape of the region during the early 14th century. Leopold I was known for his efforts to consolidate Habsburg power and expand their territories. Leopold I's reign was marked by conflicts with neighboring states, particularly Hungary and Bohemia. He was involved in various military campaigns and sought to strengthen the influence of the Habsburg dynasty. His leadership laid the groundwork for future Habsburg rulers and their eventual dominance in Central Europe.