He also composed the treatise Medicine for the Poor, along with other writings, and he lived to an advanced age.

336 – The Lord of al-Andalus, al-Nāṣir li-Dīn Allāh al-Marwānī *
The sovereign who took the honorific “Commander of the Faithful,” al-Nāṣir li-Dīn Allāh, Abū al-Muṭarrif ʿAbd al-Raḥmān, son of the emir Muḥammad, son of the ruler of al-Andalus ʿAbd Allāh, son of the ruler of al-Andalus Muḥammad, son of the ruler of al-Andalus ʿAbd al-Raḥmān, son of her master al-Ḥakam, son of her master Hishām, son of the “Entrant” Emir ʿAbd al-Raḥmān b. Muʿāwiya, grandson of the Commander of the Faithful Hishām b. ʿAbd al-Malik b. Marwān al-Marwānī, the Andalusian.

He was the builder of Madīnat al-Zahrāʾ ⦗1⦘, and his reign endured for fifty years. He carried out many conquests and celebrated expeditions, and he was the first in al-Andalus to adopt the full caliphal titles. When news reached him of the murder of al-Muqtadir and of the Abbasid caliphate’s weakness, he declared, “I have a stronger claim to the name and the designation.”

His father was killed while he himself was only twenty days old, so his grandfather became his guardian. When that grandfather died, allegiance was given to ʿAbd al-Raḥmān in the year 300 AH, notwithstanding the presence of senior uncles on both his father’s and his grandfather’s side. He assumed power at twenty-two years of age, brought the realms firmly under control, and struck fear into his enemies. He laid out al-Zahrāʾ at a distance of one barīd ⦗2⦘ from Córdoba, built it up and embellished it, and spent qintars of gold upon it,