Acclaimed author Alison Weir brings to life the extraordinary tale of Katherine Swynford, a royal mistress who became one of the most crucial figures in the history of Great Britain. Born in the mid-fourteenth century, Katherine de Roët was only twelve when she married Hugh Swynford, an impoverished knight. But her story had truly begun two years earlier, when she was appointed governess to the household of John of Gaunt, Duke of Lancaster and fourth son of King Edward III. Widowed at twenty-one, Katherine became John's mistress and then, after many twists of fortune, his bride in a scandalous marriage. Mistress of the Monarchy reveals a woman ahead of her time—making her own choices, flouting convention, and taking control of her own destiny. Indeed, without Katherine Swynford, the course of English history, perhaps even the world, would have been very different.

John of Gaunt and Katherine Swynford, Chaucer's sister-in-law, fall in love in the 14th century.

'Weir combines high drama with high passion while involving us in the domestic life of a most remarkable woman in an equally remarkable book' Scotland on Sunday The first full-length biography of an extraordinary love affair between one of the most important men of English History and a thoroughly modern woman. Katherine Swynford was first the mistress, and later the wife, of John of Gaunt, the Duke of Lancaster. Her charismatic lover was one of the most powerful princes of the fourteenth century and Katherine was renowned for her beauty and regarded as enigmatic, intriguing and even dangerous by some of her contemporaries. In this impressive book, Alison Weir has triumphantly rescued Katherine from the footnotes of history, highlighting her key dynastic position within the English monarchy. She was the mother of the Beaufort, then the ancestress of the Yorkist kings, the Tudors, the Stuarts and every other sovereign since - a prodigious legacy that has shaped the history of Britain.

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.

A Sunday Times Bestseller England’s Forgotten Queens ‘O’Brien cleverly intertwines the personal and political in this enjoyable, gripping tale.’ -The Times

The first biography to tell the personal story of the wealthiest, most powerful and most hated man in medieval England.

John of Gaunt's illegitimate line whose role in the Wars of the Roses led to the capture of the crown.

The Wars of the Roses were not just fought by men on the battlefield. Behind the scenes, there were daughters, wives, mistresses, mothers and queens whose lives and influences helped shape the most dramatic of English conflicts.This book traces the story of women on the Lancastrian side, from the children borne by Blanche, wife of John of Gaunt, through the turbulent fifteenth century to the advent of Margaret Beaufort’s son in 1509 and the establishment of the Tudor dynasty. From the secret liaisons of Katherine Swynford and Catherine of Valois to the love lives of Mary de Bohun and Jacquetta of Luxembourg, to the queenship of Joan of Navarre and Margaret of Anjou, this book explores their experiences as women. What bound them to their cause? What real influence did they wield?Faced with the dangers of treason and capture, defamation and childbirth, read how these extraordinary women survived in extraordinary times.