Concubines were however always slaves subjected to lack of freedom and the will of their master, and Caliph Abd al-Rahman III are known to have executed two concubines for reciting what he saw as inappropriate verses, and tortured another concubine with a burning candle when she refused sexual intercourse; the concubines of Caliph Abu Marwan al-Tubni (d. 1065) were reportedly so badly treated that they conspired to murder him, and women of the harem are also known to have been subjected to rape when rivaling fractions conquered different palaces. Several concubines are known to have had great influence through their masters or their sons, notably Subh during the Caliphate of Cordoba, and Isabel de Solís during the Emirate of Granada.