Madhvācārya  (1238–1317) was the chief proponent of Tattvavāda"Philosophy of Reality", popularly known as the Dvaita (dualism) school of Hindu philosophy. It is one of the three most influential Vedānta philosophies. Madhvācārya was one of the important philosophers during the Bhakti movement. He was a pioneer in many ways, going against standard conventions and norms. According to tradition, Madhvācārya is believed to be the third incarnation of Vāyu (Mukhyaprāna). 
The main icon (vigraha) in Udupi of Lord Krishna was established by Madhvacharya. The 8 monasteries (ashta mathas) of Udupi have been following his philosophy since then. The Eight monasteries (Ashta Mathas) are Krishnapura, Pejavara, Puttige, Sodhe (Sondhe), Kaniyooru, Adamaru, Shirur and Palimaru. He submitted some vigrahas to those mathas.
The Works of Madhvacharya are many in number and include commentaries on the Vedas, Upanishads, the Bhagavadgita and the Brahma Sutras. Sri Madhvacharya also composed many works on the philosophy of Tattvavada.