Luxembourg is a Western European country that is part of the European Union. Robert said his siblings – Princess Charlotte, 29, and Prince Alexandre, 27 – and anyone who met him has said ...

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, son of Prince Robert and Princess Julie, has died at 22 from PolG mitochondrial disease. His father announced the news on the POLG Foundation website, an ...

Prince Frederik of Luxembourg (Bottom row, center)© Royal Family of Luxembourg/Instagram Though born with the disease, Frederik wasn't diagnosed with PolG until he was 14.© POLG Foundation ...

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 ...

Frederik's father Prince Robert is a first cousin of Grand Duke Henri of Luxembourg, and the young royal spoke about how PolG changed his life in a video that The PolG Foundation (which he ...

(CNN) — Prince Frederik of Luxembourg, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau, has died after a lifelong battle with a rare genetic disorder known as POLG ...

Prince Frederik of Luxembourg died at 22 after years of struggling with the rare mitochondrial disease PolG, according to a statement issued by his parents, Prince Robert and Princess Julie, on ...