The Great Mosque of al-Mansur (Arabic: جامع المنصور, romanized: Djāmiʿ al-Manṣūr) was the chief Friday mosque of Baghdad during the Abbasid Caliphate.
When the Moroccan scholar and explorer, Ibn Battutah visited the city in 1327, he reported the mosque as still standing, but it disappeared at a later, unknown date; no trace of it survives today.[1]