Prince Frederik of Luxembourg died on March 1, his family wrote in an emotional statement last week. He was 22.

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

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

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.

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

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

After Prince Frederik of Luxembourg died from PolG mitochondrial disease, a rare genetic disorder at only 22, his father Prince Robert detailed his final moments.

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

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

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

All the latest news and pictures of Prince George (Alexander Louis) of Wales, the first-born son to Prince William and his wife Kate Middleton, and older brother to Princess Charlotte and Prince ...