Rudolf I of Germany was a king who ruled from 1273 to 1291. He was the first monarch from the Habsburg dynasty to hold the title of Holy Roman Emperor. Rudolf's election marked the beginning of Habsburg influence in European politics, as he worked to strengthen his family's power and territory. During his reign, Rudolf focused on consolidating his authority and managing conflicts among the various German princes. He is known for his efforts to establish peace and stability in the region, which helped lay the groundwork for the future expansion of the Habsburg dynasty across Europe.