The filmmaker who chronicled Prince Frederik of Luxembourg’s battle with the rare genetic disorder PolG has shared her experience working with the royal, who passed away on Mar. 1 at 22. Commissioned by Frederik’s mother,

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.

Prince Robert of Luxembourg has announced the heartbreaking loss of his youngest son, Frederik of Nassau, who sadly passed away aged 22. Prince Robert, who is the first cousin of Grand Duke Henri of Luxembourg, confirmed Frederik's death via an emotional statement that was issued on the POLG Foundation's official website.