The title of the work, which is a modern invention, comes from the 18th-century owner of an important manuscript, the Abbé Charles d'Orléans de Rothelin.
This section is derived from La Citez de Jherusalem, a late 12th-century French description of the holy city.
This is followed by some recommended pilgrimages to the Holy Land and three chapters (12–14) on the so-called prophecy of the son of Agap,[10] derived from a text written around the time of the Fifth Crusade (1217–1221).
[10] The main narrative picks up with the Barons' Crusade under King Theobald I of Navarre gathering at Marseille in 1239.
The result is an extended passage (chapters 45–58) full of legend and lore but also authentic Roman history, including the desert campaigns of Cato the Younger in Africa drawn from Lucan's Pharsalia.
[4] The final chapters cover Louis's crusade and its failure, the Mongol invasion of Syria and its ultimate defeat at Ain Jalut (1260) and the coup d'état which brought Baibars to power in Egypt and ended the Ayyubid dynasty (1260).