**"With impressive scholarly sleuthing and a storyteller's eloquence, Danielle Allen has written a landmark book about the people and the ideas that changed the world. By bringing the glamorous Duke of Richmond back to life, Allen paints a panoramic portrait of how principles of human equality and the spirit of independence suffused the Atlantic world in the eighteenth century--a story that shapes us still." —Jon Meacham An explosive, deeply revisionist work that reveals how a renegade English Duke and Thomas Paine, the firebrand polemicist, almost brought the American Revolution to Britain.** When Danielle Allen unearthed a parchment of the Declaration of Independence buried away in Sussex, England, little did she know that she had discovered a story of historical magnitude that would alter our understanding of British and American history. Revealing that the Age of Revolution began earlier than we thought—not with the Boston patriots nor with the Parisian Jacobins, but in Britain itself—Allen demonstrates in Radical Duke that the rights of man, the theory of revolution, and calls for popular sovereignty all emerged from the radical energies of London before they spread across the Atlantic and the Channel. At the center of this new age was Charles Lennox, the progressive Third Duke of Richmond, a rarely cited historical figure who becomes the biographical focus of Allen’s groundbreaking work. Even with royal blood coursing through his veins, the handsome, gallivanting Duke (1735–1806) preferred to rub shoulders with ordinary folk—supporting the rights of jurors, freedom of the press, and religious toleration. As Allen shows, from 1767 to 1782, he was England’s leading voice of opposition to the Crown, and, as the leader of the Sussex militia, even a threat to the King’s power. But the Duke did not challenge the Crown alone. The archives have long hidden the covert alliance between the young Duke and his age-mate Thomas Paine, the future author of Common Sense.