Question about Lord Byron's Childe Harold?

I am trying to answer a question on "Childe harold's Pilgramage" and i don't understand it. I have to list key points tht make Harold a byronic hero and I am not finding exact characteristics of a byronic hero. Can someone give me a hint, such as a pargraph or line #s to look at and try to interpret because it's all gibberish to me right now THANKS!