How does Dante describe the nature of sin in the Inferno?

1. How is Dante new type of hero?
2. How does Dante describe the nature of sin in the Inferno?
3. What is the ideal woman according to Petrarch?
4. What is true love according to Petrarch?
5. What are the good qualities of a prince according to Machiavelli?
6. Is Don Quixote a hero?