Liuquan is a human mummy of an ancient Buddhist monk, thought to have hailed from China and lived around the year 1100. He was likely worshiped by other Buddhist monks, before being interred in a golden statue of the Buddha. This statue eventually made its way to a collector in the Netherlands who then discovered that there were mummified remains within. Tests and CT scans were performed on the statue to confirm that it was in fact a human. He was displayed for a short time in the Drents Museum in the Netherlands, and now resides in the Hungarian National History Museum in Budapest.
Liuquan was thought to have practiced an ancient Buddhist technique for self-mummification similar to Shokushinbutsu, which involved starving oneself for long periods of time, and attempting to rid oneself bacteria. The practitioner would then lock oneself away in a small human sized box to meditate until they died.
Some basic analytical tests have been done on Liuquan, such as carbon dating and CT scans.
Ghose, T. (2015, February 23). Mummy Found Hiding Inside Ancient Buddha Statue. Retrieved January 13, 2016, from http://www.livescience.com/49909-buddha-statue-holds-mummy.html
Keyser, H. (2015, February 24). Mummy Discovered Inside an Ancient Buddha Statue. Retrieved January 13, 2016, from http://mentalfloss.com/article/61857/mummy-discovered-inside-ancient-buddha-statue
Sokushinbutsu. (n.d.). Retrieved January 13, 2016, from https://en.wikipedia.org/wiki/Sokushinbutsu