This book argues that Shakespeare's first tetralogy is informed by the Italian ‘politic histories’ of the early modern period, those works of history, inspired by the Roman historian Tacitus, that sought to explore the machinations of power politics in governance and in the shaping of historical events; that a close reading of these Italian ‘politic histories’ will greatly aid our understanding of the ‘politic’ qualities dramatized in Shakespeare’s early English History plays; that the writings of Niccolò Machiavelli in particular will likewise aid to such understanding; that these ‘politic histories’ were available (in a variety of forms) to many English early modern writers, Shakespeare included, and are thus helpful as grounds for political and strategic analogy and for informing our reading of Shakespeare's politic histories. While a reading of the Italian ‘politic’ historians can aid in our understanding of Shakespeare’s achievement, we should regard the English History plays as ‘politic histories’ in their own right, i.e. as dramatized versions of precisely the same kinds of ‘politic’ historical writing, with its emphasis on ragion di Stato or raison d’état. This emphasis on what the Elizabethans called ‘stratagems’ suggests new ways to read the plays and to interpret the motivation and action of its characters, ways that challenge some of our more established reading of the plays’ ‘Machiavellian’ characters (particularly Richard III) and suggest far greater strategic acumen on the part of previously overlooked characters (particularly Buckingham and Stanley), providing new ways to read the Shakespeare's politic histories and to better appreciate their Italian connection.