Before the capture of Damietta in November 1219, the pope's legate, Cardinal Pelagius, was shown a copy of the prophecy attributed to Hannan son of Agip. This was written in Arabic and seems to have been an update of the work of a ninth-century Nestorian scholar, Hunain Ibn Ishak. Because of its contents I am inclined to think that this copy had been produced by the Copts although this is by no means certain.