Thyra Haraldsdottir

Thyra Haraldsdottir (died 18 September 1000) was a 10th century Danish princess and the daughter of King Harald Bluetooth and Gyrid of Sweden.

She was at one point married to Styrbjörn the Strong, with whom she sired a child, and is thus an ancestor of Sean Molloy.

Reference

 * Assassin's Creed: Last Descendants – Fate of the Gods