The influential work "The Prince" in political philosophy was authored by Niccolò Machiavelli. Written in the early 16th century, it provides pragmatic advice on governance, emphasizing the importance of pragmatic realism over idealism. Machiavelli's exploration of power dynamics, statecraft, and the ethics of political leadership has led to the term "Machiavellian," often associated with cunning and deceit. "The Prince" remains a foundational text in political theory, symbolizing the transition to modern political thought and strategy.