India, March 10 -- Prince Frederik of Luxembourg passed away in Paris on March 1 at the age of 22 from POLG, a rare genetic disorder. The death of the youngest child of Prince Robert of Luxembourg and Princess Julie of Nassau occurred one day after Rare Disease Day.

Frederik's father issued a statement on his passing on the website of the POLG Foundation, which his son co-founded in 2022 and served as its creative director.

He remarked Frederik battled his illness bravely to the end, stressing that "his indomitable lust for life propelled him through the hardest of physical and mental challenges."

Frederik, who is regarded as a tough fighter and a fierce advocate, is survived by his parents, brother Alexander and sister Charlotte. "Fre...