Niccolò Machiavelli (1469 –1527) was a Florentine statesman and political philosopher. As a theorist, Machiavelli was the key figure in realistic political theory, crucial to European statecraft during the Renaissance. His two most famous books, Discorsi sopra la prima deca di Tito Livio (Discourses on Livy) [3 vols., written 1512–1517] and Il Principe (The Prince) [written 1513–1514 and published in 1532], were written in the hopes of improving the conditions of the Northern Italian principalities, but became general handbooks for a new style in politics. The Prince, written to encourage the appearance of a political savior who would unify the corrupt city-states and fend off foreign conquest, advocated the theory that whatever was expedient was necessary—an early example of utilitarianism and realpolitik.