The work al-Dhakhīra al-saniyya fī ta’rīkh al-dawla al-marīniyya records the history of the Marīnid dynasty, including a number of references to other Islamic regions like Egypt, Syria and al-Andalus. The authorship of this chronicle has not yet been solved. The aim of this paper is to provide the most relevant information on the issue. Alongside with other type of information concerning al-Andalus, this paper focuses on that which concerns the territory conquered by the Kingdom of Castile throughout the 13th century, and which so far has been mostly disregarded. It undoubtedly contributes to improve our knowledge of the period, especially as regards both the destiny of the conquered Muslim populations and the chronology of the conquest. We...