Adi Shankaracharya
आदिशंकराचार्यः
Adi Shankaracharya (788–820 CE) was the foremost philosopher and theologian of Advaita Vedanta. He wrote commentaries on the Brahma Sutras, Upanishads, and Bhagavad Gita, consolidating the Advaita (non-dualist) school of Hindu philosophy. He established four mathas (monasteries) at Sringeri, Dwarka, Puri, and Badrinath. Works: Vivekachudamani, Bhaja Govindam, Commentaries on Prasthanatrayi.