'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.

"Nowhere is the subtlety of Ophelia Field's historical understanding more apparent than in her delicate reading of the relationship between Sarah and Anne. That it is Field's first book is something of a wonder ... An outstandingly accomplished debut" - Guardian

"She is a marvellous subject for a biography and Ophelia Field's book, capacious and beautifully detailed, does her full justice. It is the first work by a writer who is a master of her craft" - Independent

"Other historians have skirted around the true nature of Sarah and Anne's passionate friendship, with its lesbian overtones, but Ophelia Field tackles the subject courageously ... During her long life Sarah managed to quarrel with almost everyone and took great care in editing her papers to ensure that posterity would know her side of the story, which is covered exhaustively by Field in this impressive debut" - The Times

"Scholarly, highly articulate, and above all never dull" - Sunday Telegraph

"Field draws effectively on Sarah's letters and self-justifying memoirs to produce a remarkable portrait" - Sunday Times

"Field has created an unforgettable picture of a remarkable figure ... Instead of fictionalizing her, Field shows how Sarah became a kind of fictional and artistic icon, a symbol of certain kinds of power that remained free of the checks and balances that the new settlement and constitution was bent on establishing. Even after 250 years, she fascinates like nobody else of her time" - Sunday Herald

"Ophelia Field's gripping biography of Sarah Churchill, Duchess of Marlborough recounts the scandalous friendship between the Queen and her favourite" - Daily Mail Must Reads

"Once you have started reading Ophelia Field's splendid book, it is hard to put it down" - The Lady

"A quite astonishing tale" - London Review of Books

"Scholarly but never less than fascinating, Field's debut truly brings to life the complex character of Sarah Churchill and the last of the Stuart courts" - Aberdeen Evening Express

"Brilliantly captures the voice of its captivating central character" - Choice Pick of the paperbacks

"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" - Pittsburgh Post-Gazette