Tyrant of Pisa; was of the Guelph party; celebrated for his tragic fate; having fallen into the hands of his enemies, he was in 1288 thrown into a dungeon along with his two sons and two grandsons, and starved to death, a fate which suggested to Dante one of the most terrible episodes in his "Inferno"; the dungeon referred to has since borne the name of the "Tower of Hunger."