“Among the front rank of writers producing thoughtful and engaging popular history, Ms. Castor . . . examines complex events and an extensive cast of personalities in clear, uncluttered prose. . . . [A] richly textured re-creation of an era in which chivalric ideals coexisted with deeds of treachery and brutality.” —Wall Street Journal

“The Eagle and the Hart is a meticulous account of the precariousness of kingship and the psychology of power. It is also a rattlingly good story, told with scholarship and humanity by one of our finest historians.” —Helen Carr, The Spectator

“A luminous 600-page study of the Plantagenet cousins who between them generated the plots for three of Shakespeare’s history plays.” —The Guardian

“It is the measure of her genius for narrative and character that the tale she tells does not remotely suffer from comparison with Shakespeare. Two men of remarkable but opposed talent, yoked together in mutual hatred, in death as in life, each doomed forever to be defined by the other, here is tragedy indeed. There is no book published this year, novels included, that I found richer in character, no plot more taut.” —Tom Holland, Spectator Best Books of the Year

“The book is astonishingly good. I cannot recommend it highly enough. It is both a gripping, moving, deeply humane study of two contrasting cousins, and a clear-eyed dissection of late medieval England’s polity.” —Dan Jones, History, Etc.

“An utterly gripping and compelling tale of a deadly rivalry, told with Helen Castor’s characteristic verve and exceptional scholarship. The intrigue, turbulence, and sheer drama of the Plantagenet age is brought vividly to life throughout. One of the best history books I've read in years.” —Tracy Borman, author of Anne Boleyn & Elizabeth I

“The Eagle and the Hart brings the 14th century to life in all its gaudy colour, terrifying bloodletting, and high drama. A book to feast on.” —London Evening Standard

“[An] exhaustively researched and beautifully written account . . . The Eagle and the Hart reads not just as a political epic but as a timely reflection on both the dangers of egomaniacal rulers and the challenges facing those who replace them.” —Katherine Harvey, The Times (UK)

“The Eagle and the Hart is packed with drama and incident, but it’s also written with an electrifying sense of the tensions between individuals and institutions, innovation and tradition, legitimacy and tyranny. This is a masterpiece of narrative history.” —Matthew Lyons, The Telegraph

“Helen Castor is the historian’s historian and the writer’s writer. She combines exceptional scholarship with acute psychological insight and gorgeous, pulsating prose. The Eagle and the Hart is a tour de force: a thrilling tale of royal rivalry and a brilliant dissection of the dark heart of political power—both in the 14th century and for all time.” —Jessie Childs, author of The Siege of Loyalty House