Prince Frederik of Luxembourg, who died at 22, spoke about the rare genetic disorder he navigated in a video released by The ...

Luxembourg's most famous hermit is no exception ... He was a good guy and apparently quite popular among the people from nearby villages, who often flocked to his cave to obtain advice.

Prince Frederik, 22, was a founder and the creative director of a foundation that raised awareness of POLG disorder.

Prince Frederik of Luxembourg died at the age of 22 due to a rare mitochondrial condition called POLG disease— Newsweek has ...