The prince had PolG disease, a genetic mitochondrial disorder that prevents the body's cells from producing adequate energy.

Prince Frederik of Luxembourg, son of Prince Robert and Princess Julie of Nassau, passed away at 22 in Paris due to POLG mitochondrial disease. Diagnosed at 14, Frederik advocated for research and ...

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

Princess Beatrice is the eldest child of the ... while Beatrice is also stepmother to Edoardo's son Christopher from his previous relationship.

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Prinsessan Sofia höll om sin make när prins Carl Philip… Här tröstas prins Carl Philip av prinsessan Sofia Vid jordfästningen av kungens syster prinsessan Birgitta tröstades kungabarnen.

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Those with the condition usually have a life expectancy of between three months and 12 years from the onset of symptoms.