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

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

P rince Frederik of Luxembourg, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, died in Paris ...

Prince Frederik of Luxembourg has died of the rare genetic disease he was born with 22 short years ago after saying goodbye ...

( NewsNation) — Prince Frederik of Luxembourg has died at 22 from POLG mitochondrial disease, a genetic disorder he has had ...

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 asked his father one final powerful question before dying from a rare POLG Mitochondrial ...

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

Prince Frederik of Luxembourg has died aged 22 after being diagnosed with POLG Mitochondrial disease and his father, Prince ...