The relationship between Nammalvar and Nathamuni is attested by the Guru-paramparā, Divya sūri charita, and Prappannāmŗta. The Prappannāmŗta also attests that Nathamuni was born in the village Viranarayana. Viranarayana is today generally identified as Kattumannarkoil.Jagadeesan, N. (1989). Collected Papers on Tamil Vaishnavism, p.126. Ennes Publications. Nathamuni is said to have died at Gangaikonda Cholapuram.Es Vaiyāpurip Piḷḷai (1956). History of Tamil language and literature: beginning to 1000 AD, p.130. New Century Book House His father's name was Iśvara Bhaṭṭa and his son's name was Iśvaramuni. His grandson was Yamunacharya who was probably named in commemoration of a pilgrimage that Nathamuni took to the banks of the Yamuna along with his son (Iśvara Muni) and daughter-in-law.
