Duke Leopold IV was a notable figure in the history of the Austrian Empire, serving as the Duke of Austria from 1351 until his death in 1386. He was a member of the House of Habsburg, a powerful dynasty that played a significant role in European politics. Leopold IV is remembered for his efforts to consolidate power and expand his territories during a time of political fragmentation. In addition to his political endeavors, Leopold IV was known for his patronage of the arts and culture. He supported various projects that contributed to the development of Vienna and the surrounding regions. His reign marked a period of relative stability, which helped lay the groundwork for future Habsburg rulers.