The prince had PolG disease, a genetic mitochondrial disorder that prevents the body's cells from producing adequate energy.

Prince Frederik of Luxembourg, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, has died after a ...

Prince Frederik, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, has died at the age of 22. He ...

Prince Frederik of Luxembourg, aged 22, passed away from POLG mitochondrial disease, a rare genetic disorder. His father ...

Prince Frederik of Luxembourg, son of Prince Robert, passed away at 22 from POLG mitochondrial disease, leaving a lasting ...

Prince Frederik of Luxembourg, the son of Prince Robert and Princess Julie of Nassau, passes away at 22 in Paris. He battled ...

Prince Frederik of Luxembourg died from a genetic disease called PolG, but experts hope his passing could bring more ...

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 ...

Rare POLG mitochondrial disease explained after Prince Frederik of Luxembourg died aged 22 following his diagnosis when he ...

Prince Frederik, the son of Europe's Prince Robert of Luxembourg, has died from a rare genetic disease, his family announced.

Luxembourg's Royal Family has announced the death of Prince Frederick at 22 years old.