King Charles III was briefly hospitalized March 27 amid his ongoing cancer battle, Buckingham Palace said in a statement obtained by E! News.

Prince Harry and longtime friend Prince Seeiso of Lesotho made the shocking announcement that they're stepping down from ...

Archduchess Estelle of Austria sadly died earlier this month at the age of 46. The royal leaves behind her husband Archduke ...

Prince Frederik of Luxembourg's family has shared a poignant new photo of the late royal taken before his death at the age of ...

POLG-related diseases disrupt the function of the mitochondria, or "powerhouses" of the cell — starving them of energy.

Commissioned by Frederik’s mother, Princess Julia of Nassau, to helm an educational short film about the disease with Frederik at its center, director Mei Fa Tan said she was left “inspired” by the ...

Prince Frederik of Luxembourg, son of Prince Robert and Princess Julie of Nassau, passed away at 22 in Paris due to POLG mitochondrial disease. Diagnosed at 14, Frederik advocated for research and ...