According to Moses ibn Ezra in the Kitāb al-Muḥāḍara wa ’l-Mudhākara (Halkin ed., p. 76), Abū ʿAmr ibn al-Dayyan lived between the eleventh and twelfth centuries. Ibn Ezra mentions him after a reference to Ibn al-Marah, a poet from Granada who lived at the end of the eleventh century, and before a passage pertaining to his brother Isaac ibn Ezra which specifies that he lived in Lucena and died in 1121. This date gives a chronological position for Ibn al Dayyan, who is stated to have been a resident of eastern al-Andalus without naming a specific place. Given the time frame referred to, Valencia, …