Heir to an earldom, and wife and widow of William de Valence (half-brother of King Henry III), Joan de Valence was an important actor in the volatile political world of thirteenth-century England, Wales, Scotland, and Ireland. Yet, astonishingly, her story of survival, perseverance, and influence has never been told until now. Joan de Valence: The Life and Influence of a Thirteenth-Century Noblewoman draws on archival research, as well as tools of historical analysis and gender studies, to peel back the layers of this remarkable noblewoman's life. From her survival of the wars between king and baronage at mid-century to her life as a widow and magnate of the realm, the story of Joan de Valance, as Mitchell argues, exemplifies the range of experiences of noblewomen during the middle ages.