Prince Frederick of Luxembourg died at the age of 22 — he suffered from a rare genetic disease, writes The Sun. The death of the prince was announced by his father Robert of Luxembourg, a cousin of Duke Henri.

His father announced the news on the POLG foundation websitePrince Robert of Luxembourg has announced the death of his

Prince Frederik, the second cousin of the heir to the Luxembourg throne, discovered at age 14 that he had a mutation in his POLG gene, which is involved in the replication and repair of DNA. He died on March 1st in Paris, his father, Prince Robert, said in a statement through the POLG Foundation.

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