Current heiress to the Randgriz line of Archdukes who rule Gallia. She stands as a figurehead of the nation and scion of the legendary Valkyrur. The death of her parents, the former Archduke and Duchess of Gallia, left her heiress to the throne, though her young age has so far precluded her coronation. Since Maurits von Borg was appointed as her regent, she has concealed most of her feelings and thoughts to herself.

Spoiler

Near the end of the anime,she reveals her real self;she's a Darcsen.

Source: Sega Valkyria website