Harihara I was a prominent ruler in the 14th century, known for co-founding the Vijayanagara Empire in southern India. He, along with his brother Bukka Raya I, established the empire around 1336 CE, which became a significant power in the region, promoting trade, culture, and architecture. Under Harihara I's leadership, the empire expanded its territory and influence, fostering a rich cultural environment. The rulers were known for their patronage of Hinduism and the arts, which led to the construction of many temples and monuments that still stand today, reflecting the empire's grandeur.