Adi Shankara
Adi Shankara (8th c. CE), also called Adi Shankaracharya (Sanskrit: आदि शङ्कर, आदि शङ्कराचार्य, romanized: Ādi Śaṅkara, Ādi Śaṅkarācārya, lit. 'First Shankaracharya', pronounced [aːd̪i ɕɐŋkɐraːt͡ɕaːrjɐ]), was an Indian Vedic scholar-monk, philosopher, and teacher (acharya) of Advaita Vedanta.