Thyra Haraldsdottir
Thyra Haraldsdottir (972 - 18 September 1000) was a 10th century Danish shieldmaiden and the bastard daughter of King Harald Bluetooth. While her parentage wasn't a secret, Thyra despised her coward father and never asked Harald to publicly acknowledge her as his daughter.
After her father married Gyrid of Sweden and allied with his brother-in-law, Styrbjörn the Strong, Thyra joined the army that fought against King Eric of Svealand to take back the throne for Styrbjörn. After Harald betrayed Styrbjörn and left with all the Danes under the cover of the night, Thyra opted to stay with the Swedish Prince. During the campaign against Eric, Thyra married Styrbjörn, with whom she sired a child the night prior to his death, and is thus an ancestor of Sean Molloy.