Ali az-Zahir, Egyptian caliph (b. 1005)
Abū'l-Ḥasan ʿAlī ibn al-Ḥākim (Arabic: أبو الحسن علي ابن الحاكم; 20 June 1005 – 13 June 1036), better known with his regnal name al-Zāhir li-iʿzāz Dīn Allāh (Arabic: الظاهر لإعزاز دين الله, lit. 'He Who Appears Openly to Strengthen the Religion of God'), was the seventh caliph of the Fatimid dynasty (1021–1036). Al-Zahir assumed the caliphate after the disappearance of his father al-Hakim bi-Amr Allah.