[1] It is divisible into three parts and the third, which is the original work of the compiler, is the most important source for the final years of the Kingdom of Jerusalem and one of only two eyewitness accounts of the fall of Acre in 1291.
It was based on his evident association with Guillaume de Beaujeu, master of the Templars from 1273 until 1291, and his long residence in Tyre between 1269 and 1283.
[3] The author was fluent in Arabic and translated letters from the Egyptian sultan al-Ashraf Khalil to Guillaume de Beaujeu into French.
[3] The Deeds is preserved in a single Cypriot manuscript (MS Torino, Biblioteca Reale, Varia 433) that was copied in 1343 for the head of the Mimars family by his prisoner, John le Miege, in the castle of Kyrenia.
The third makes use of the Estoire d'Eracles, which it calls the Livre dou conquest, to fill in the period down to 1270, after which the compiler makes use of his own memory and oral testimony to write an original account of the final years of the Kingdom of Jerusalem and the following two decades on Cyprus.