Al-Zahir bi-Amr Allah

Abū Nasr Muhammad ibn al-Nāsir (Arabic: أبو نصر محمد بن الناصر; 1175 – 11 July 1226), better known with his regnal name al-Ẓāhir bi-Amr Allāh (الظاهر بأمر الله, lit. 'He Who Appears Openly by the Order of God'), was the Abbasid caliph in Baghdad from 1225 to 1226. He succeeded his father al-Nasir in the year 1225 as the thirty-fifth Abbasid Caliph.

Source: Wikipedia — https://en.wikipedia.org/wiki/Al-Zahir_bi-Amr_Allah