Shankaracharya

Shankaracharya, (IAST: Śaṅkarācārya, Shankara acharya) is a commonly used title of heads of monasteries called mathas in the Advaita Vedanta tradition. The title derives from Adi Shankara, a 9th century CE reformer of Hinduism. He is honored as Jagadguru, a title that was used earlier only to Lord Krishna. The popular view among historians is that there were four mathas established by Ādi Śankara: