The Archduchess, who lived in Nice, leaves behind her husband  Archduke Carl Christian and their five children.

Australian researchers are providing new hope for a cruel killer disease with royal connections. Called mitochondrial disease ...

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

Commissioned by Frederik’s mother, Princess Julia of Nassau, to helm an educational short film about the disease with ...