Machiavelli, full name Niccolò Machiavelli, was an Italian diplomat, philosopher, and writer during the Renaissance. He is best known for his political treatise "The Prince," which examines the use of power and the tactics of effective leadership. Machiavelli's work is often associated with the concept of realpolitik, where political decisions are guided by practical considerations rather than moral principles.
Niccolo Machiavelli died in the year 1527. So, yes, he is indeed dead.