Astrid Redimir, originally known as Astrid Lionheart, was the last sovereign of the mythical citadel of Hyperborea and guardian of knowledge. Elected by the council of the wise, after the sudden death of her father, the noble Klaus Redimir.

She was the youngest ruler of Hyperborea, along with her adoptive brother Heinrich, who was appointed as captain of the Iron Heart guard by the same council of the wise.

After the fall of Hyperborea and the dissolution of the Iron Heart army, Astrid moved to the quiet lands of Icecap region, where she spent the rest of her life in peace.

Currently, her palace has become a tourist destination for all those interested in knowing a little more about the old Mobius.