Sophie Winton was a Manticoran citizen and a member of the House of Winton in the 16th Century PD.
She was the second child and only daughter of Crown Prince Edward Winton and his wife, Cynthia Gundersen-Winton. Her older brother was Richard Winton, who became the crown prince when their grandfather, King Michael I, abdicated and their father ascended to the throne.
In 1543 PD, however, Richard was killed in the destruction of his ship during the battle against the Volsung Mercenaries, making Sophie the new crown princess. (MA2)
Shortly thereafter however, she and her father were both killed in a boating accident while on Jason Bay. (MA3)