Katherine Swynford - sexual temptress or powerful woman at the centre of the medieval court?This book unravels the many myths and legacies of this fascinating woman, to show her in a whole new light. Katherine was sister-in-law to Geoffrey Chaucer and governess to the daughters of Blanche of Lancaster and John of Gaunt. She also became John of Gaunt's mistress - a role that she maintained for 20 years - and had four illegitimate children by him, from one of whom Henry Tudor was descended. In a move surprising in the fourteenth century, John of Gaunt eventually married her, making her Duchess of Lancaster and stepmother to the future king, Henry Bolingbroke.But who was this extremely well-connected woman? In this fascinating book, Jeanette Lucraft treats Katherine as a missing person and reconstructs her and her times to uncover the mystery of the 'other woman' in John of Gaunt's life.