Luxembourg’s Prince Frederik’s death has been announced. It was due to a rare genetic condition. Here is what we

Prince Frederik, the son of Prince Robert of Luxembourg and Princess Julie of Nassau, passed away on March 1 in Paris, France. He was in his early 20s.

Prince Frederik of Luxembourg died on March 1, his family wrote in an emotional statement last week. He was 22. The young prince, who is the son of Prince Robert of Luxembourg and Princess Julie of Nassau,

The royal family of Luxembourg is currently in mourning, as Prince Frederik of Luxembourg—the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau—has died at 22 from complications of a rare genetic disorder called POLG mitochondrial disease.

Prince Frederik of Luxembourg has died at 22 from POLG mitochondrial disease, a genetic disorder he has had since birth. The family announced his death one day after Rare Disease Day, which is the last day of February.