Prince Frederik of Luxembourg spoke about his PolG diagnosis and what brought him solace in an emotional video that has resurfaced following his death from the genetic disorder at age 22. "When you're ...

Prince Frederik, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, has died at the age of 22. He passed away on March 1 from POLG Mitochondrial disease, a rare genetic ...

Prince Frederik of Luxembourg died on Feb. 28 after years of being diagnosed with a rare mitochondrial disease, according to a statement issued over the weekend by his parents, Prince Robert and ...

A prince of Luxembourg has died at 22 of a genetic disease for which he spent his brief life raising awareness. Prince Frederik, the second cousin of the heir to the Luxembourg throne, discovered at ...