Prince Frederik of Luxembourg died after years of being diagnosed with a rare mitochondrial disease called PolG.

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Prince Frederik of Luxembourg, 22, succumbed to POLG mitochondrial disease. Despite his struggles, he raised awareness ...

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

Prince Frederik, 22, was a founder and the creative director of a foundation that raised awareness of POLG disorder.

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

Prince Frederik of Luxembourg died on March 1, his family wrote in an emotional statement last week. He was 22.

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

Prince Frederik, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, has died at the age of 22. He ...

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

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, the son of Prince Robert of Luxembourg and Princess Julie of Nassau, has passed away at the ...