Through stories of lustful and incestuous rulers, of republican revolution and of unnatural crimes against family, seventeenth-century Englishmen imagined the problem of tyranny through the prism of classical history. This fuelled debates over the practices of their own kings, the necessity of revolution, and the character of English republican thought. The Rule of Manhood explores the dynamic and complex languages of tyranny and masculinity that arose through these classical stories and their imaginative appropriation. Discerning the neglected connection between concepts of power and masculinity in early Stuart England, Jamie A. Gianoutsos shows both how stories of ancient tyranny were deployed in the dialogue around monarchy and rule between 1603 and 1660 and the extent to which these shaped English classical republican thought. Drawing on extensive research in contemporary printed texts, Gianoutsos persuasively weaves together the histories of politics and manhood to make a bold claim: that the fundamental purpose of English republicanism was not liberty or virtue, but the realisation of manhood for its citizens.