Prince Robert of Luxembourg has announced the heartbreaking loss of his youngest son, Frederik of Nassau, who sadly passed ...

Robert of Luxembourg has announced, with immense sadness and pain, the death of his young son, Frederick of Nassau, at the age of 24. The cousin of Grand Duke Henri released a long and heartfelt ...

Prince Frederik, the youngest child of Prince Robert of Luxembourg and Princess Julie of Nassau, died from a rare genetic condition.

Editorial Fellow Prince 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 ...

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 ...

Duke Henri — the first cousin of Prince Robert of Luxembourg, whose 22-year-old son recently died — owns three official royal residences in Luxembourg, with the Grand Ducal Palace being chief ...

Picture: Patrick van Katwijk/Getty Images Duke Henri — the first cousin of Prince Robert of Luxembourg, whose 22-year-old son recently died — owns three official royal residences in Luxembourg ...

Prince Frederik of Luxembourg, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, died at the age of 22 after a prolonged battle with POLG mitochondrial disease ...