mar 11, 1507 - Italian mercenary leader and former prince Cesare Borgia, later cited by Niccolò Machiavelli in The Prince as an example of "conquest by fortune",[4] completes his conquest of the Spanish city of Viana by driving out the defenders of the castle of the Count of Lerín, but makes the mistake of pursuing the fleeing enemy by himself. He is killed the next day by his captors