On the death of Pius III, in 1503, Machiavelli was sent to Rome to watch the election of his successor, and there he saw Cesare Borgia cheated into allowing the choice of the College to fall on Giuliano delle Rovere (Julius II), who was one of the cardinals that had most reason to fear the duke. Machiavelli, when commenting on this election, says that he who thinks new favours will cause great personages to forget old injuries deceives himself. Julius did not rest until he had ruined Cesare. - The Prince, Niccili Machiavelli