P rince Frederik of Luxembourg, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, died in Paris at age 22 on March 1—a day after Rare Disease Day—of a rare genetic disease ...

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

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, died at age 22 on March 1 from ...

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 from a genetic disease called PolG, but experts hope his passing could bring more awareness to the rare condition that impacted his life. Prince Frederik ...

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, son of Prince Robert of Luxembourg, has died from a rare genetic disease, his father announced. He was 22. Robert and his wife, Princess Julie of Nassau, announced Frederik's ...

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.

Prince Frederik of Luxembourg has died after a lifelong battle with a rare genetic disorder known as POLG mitochondrial disease.Related video above: Remembering those we lost in 2025He passed away ...