The scandalous true story of the duchess who became her beloved queen's blackmailer, published in a new and updated edition to coincide with the Oscar-winning film starring Olivia Colman, Emma Stone and Rachel Weisz.

'An incredible story crackling with royal passion, envy, ambition and betrayal ... A tour de force' Lucy Worsley

Sarah Churchill, Duchess of Marlborough, was as glamorous as she was controversial. Politically influential and independently powerful, she was an intimate, and then a blackmailer, of Queen Anne, accusing her of keeping lesbian favourites - including Sarah's own cousin Abigail Masham.

Ophelia Field's masterly biography brings Sarah Churchill's own voice, passionate and intelligent, back to life. Here is an unforgettable portrait of a woman who cared intensely about how we would remember her - perfect for fans interested in the history behind the award-winning film starring Rachel Weisz with Olivia Colman and Emma Stone.

A great read ... Simply put, the life [Ophelia] Field documents and interprets with great care shows Sarah to be as remarkable as her many doubters over a couple of centuries could never believe or admit. One pleasure is how often she quotes Sarah, who wasn't a wit but was so frank and trenchant that she is witty in spite of her pragmatic nature ... in [Ophelia] Field's book, [Sarah Churchill] remains untethered, a magnificent woman to occasion wonder