The Bad Manners of A Crusading Prince by Anna Comnena (circa 1140s or 1150s)- This link opens in a new window
Among the sources for the First Crusade there is a history of the eastern emperor, Alexis, written by his daughter, Anna Comnena. After speaking of the kindly but sagacious way in which her father treated the inconvenient and often disorderly troops of crusaders when they reached Constantinople, she gives the following example of their bad manners