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

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

Frederik de Nassau died on March 1, in Paris, a day after internationally recognized Rare Disease Day, which takes place on ...

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

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

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

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

Prince Frederik of Luxembourg, the youngest son of Prince ... The prince died a day after Rare Disease Day, an international day of awareness for rare diseases. An estimated 300 million people ...

Prince Frederik of Luxembourg, aged 22, passed away from POLG mitochondrial disease, a rare genetic disorder. His father announced the news and praised Frederik's courage and dedication to raising ...

Prince Frederik, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, has died at the age of 22. He passed away on March 1 from POLG Mitochondrial disease, a rare genetic ...

Prince Frederik of Luxembourg died on Feb. 28 from a rare mitochondrial disease, according to a statement issued over the weekend by his parents, Prince Robert and Princess Julie. He was 22.