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

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

The Fox News Entertainment Newsletter brings you the latest Hollywood headlines, celebrity interviews and stories from Los ...

Frederik's father Prince Robert of Luxembourg announced the incredibly sad news via The POLG Foundation website. The young ...

Prince Frederik of Luxembourg passed away at the age of 22 after a lifelong struggle with POLG mitochondrial disease, a rare genetic disorder. Frederik, the youngest son of Prince Robert of Luxembourg ...

Prince Frederik was diagnosed with the mitochondrial disease PolG at age 14 and dedicated his life to combating the genetic ...

Luxembourg is mourning the youngest member of its royal family – Prince Frederik, son of Prince Robert of Luxembourg and ...

Tributes have been paid to Prince Frederik of Nassau, who has died aged 22 in Paris from a genetic disease. A statement from ...

Prince Frederik of Luxembourg, son of Prince Robert, passed away at 22 from POLG mitochondrial disease, leaving a lasting ...

The royal - who was the son of Prince Robert of Luxembourg and Princess Julie of Nassau - passed away on March 1 following a long battle with a POLG Mitochondrial, his father announced on Saturday ...

In the Broadway musical, the title character tries to pass herself off as the tragic Grand Duchess Anastasia, who was killed along with the rest of the Russian royal family in 1918. Or was she?