- Luxembourg’s Prince Frederik dies of rare disease DW (English)
- Prince Frederik of Luxembourg dies from rare disease CNN
- Prince Frederik, son of Prince Robert of Luxembourg, dies of rare POLG disease at 22 USA TODAY
- Luxembourg’s Prince Frederik Dies at 22 from Rare Genetic Condition: ‘He Is My Superhero,’ Says Dad Prince Robert PEOPLE
- Prince Frederik of Luxembourg’s heroic final act revealed before death at 22 New York Post
