Hattusili III was a prominent king of the Hittite Empire, reigning during the 13th century BCE. He is best known for his military campaigns and diplomatic efforts, particularly his treaty with Ramesses II of Egypt, which is one of the earliest known peace agreements in history. Hattusili III worked to strengthen the Hittite state and expand its influence in the region. Under Hattusili III's rule, the Hittite capital, Hattusa, flourished, and he focused on rebuilding and fortifying the city. His reign marked a period of cultural and economic prosperity, with advancements in art and architecture. Hattusili III's legacy is significant in the context of ancient Near Eastern history.