A European aristocrat who just wanted to kill a man

(1)In the 17th century, a Neapolitan nobleman was more likely to be Dante or Ariosto
(2)I fought more than 20 times over the great Italian poet
(3)killed 14 people
(4)But before this aristocrat’s death, in his confessional history, he was actually Dante
(5)Liosto confessed that he had never read it