The origin of the Vijayanagara Empire is a controversial topic in South Indian history, with regard to the linguistic affiliation of the founding dynasty, the Sangama family. The Vijayanagara Empire rose to power in southern India in the 14th century CE. Over the past decades historians have expressed differing opinions on whether the empire's founders, Harihara I and Bukka I (two of four sons of Sangama), were of Kannada people or Telugu origin. There are various opinions about role of the Vidyaranya, the Hindu saint and guru of Harihara I and Bukka I in the founding of the Vijayanagara empire.