File:Sankara.jpg

Fair use for Adi Shankara
The image linked here is claimed to be used under fair use as:
 * 1) it is in low resolution (copies made from it will be of very inferior quality)
 * 2) the painting is only being used for informational purposes.
 * 3) Its inclusion in the article adds significantly to the article because it shows the subject of this article with the accompanying historical figures (viz, Adi Shankara's disciples).

Summary
Source http://in.geocities.com/ammassridhar/index_files/sankara.jpg

artist and ultimate origin of this image are unknown.