Sadh Vaishnavism (IAST: Sādh Vaiṣṇavism), (popularly referred as Madhva Sampradaya, Madhva Vaishnavism and Brahma Sampradaya), is a denomination within the Vaishnavism—Bhagavata tradition of Hinduism. Sadh Vaishnavism was founded by thirteenth century philosopher-saint Madhvacharya, who developed the Tattvavada (dvaita) ("arguments from a realist viewpoint") Vedanta sub-school of Hindu philosophy.