A Papal bull is a particular type of patent or charter issued by a pope. It is named after the bulla that was appended to the end to authenticate it. This article is a stub. You can help the Crusades Wiki by expanding it in its relation to the Crusades. Retrieved from "https://crusades.wikia.org/wiki/Papal_bull?oldid=3949" Categories: Stubs Religion Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.