Nathamuni
Nathamuni was a Vaishnava theologian who collected and compiled the Nalayira Divya Prabandham. Considered the first of Sri Vaishnava āchāryās, Nathamuni is also the author of Yogarahasya, and Nyāyatattva.
Birth and family
Nathamuni is generally considered to have been born in 824 AD and to have died in 924 AD. An alternative view is that he was born in 582 AD and died in 922 AD. Yet another view is that Nathamuni was born at Viranarayana Puram sometime shortly after 907 AD and flourished in the 10th century. Though there is difficulty in fixing Nathamuni's date of birth and age, he is considered to have lived during the lifetime of Madhura kavi Alwar's Parampara. That Nathamuni was in contact with Nammalvar 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. Nathamuni is said to have died at Gangaikonda Cholapuram. His father's name was Iśvara Bhaṭṭa and his son's name was Iśvaramuni. His grandson was Yamunacharya.