The wolf of Gubbio

During the period when Francis was living in Gubbio, a fierce wolf appeared in the country and began attacking livestock. Soon the wolf graduated to direct assaults on humans, and not long after began to dine upon them exclusively. It was known for lingering outside of the city gates in wait for anyone foolish enough to venture beyond them alone. No weapon was capable of inflicting injury upon the wolf, and all who attempted to destroy it were devoured. Eventually mere sight of the animal caused the entire city to raise alarm and the public refused to go outside the walls for any reason. It was at this point, when Gubbio was under siege, that Francis announced he was going to take leave and meet the wolf. He was advised against this more than once but, irrespective of the warnings, made the sign of the Cross and went beyond the gates with a small group of followers in tow. When he neared the lair of the wolf the crowd held back at a safe distance, but remained close enough to witness what transpired.
The wolf, having seen the group approach, rushed at Francis with its jaws open. Again Francis made the sign of the Cross and commanded the wolf to cease its attacks in the name of God, at which point the wolf trotted up to him docilely and lay at his feet, putting its head in his hands. The Fioretti then describes word-for-word his dealings with the wolf:

Francis leading the wolf to Gubbio
"Brother wolf, thou hast done much evil in this land, destroying and killing the creatures of God without his permission; yea, not animals only hast thou destroyed, but thou hast even dared to devour men, made after the image of God; for which thing thou art worthy of being hanged like a robber and a murderer. All men cry out against thee, the dogs pursue thee, and all the inhabitants of this city are thy enemies; but I will make peace between them and thee, O brother wolf, is so be thou no more offend them, and they shall forgive thee all thy past offences, and neither men