Al-Mustazhir

Abu'l-Abbas Ahmad ibn Abdallah al-Muqtadi usually known simply by his regnal name Al-Mustazhir billah (b. April/May 1078 – 6 August 1118 d.) was the Abbasid Caliph in Baghdad from 1094 to 1118. He succeeded his father al-Muqtadi as the Caliph. The main and important events during his reign are; appearance of the First Crusade in Western Syria, Muslim protest in Baghdad against crusaders, his efforts to help Mawdud to organize several expeditions to reconquer lands from the Crusaders.

Biography Al-Mustazhir's father was caliph Al-Muqtadi. His mother was Tayf al-Khayal, a Turkish concubine. He was born in 1078 (the 5th Islamic century). Al-Mustazhir's full name was Ahmad ibn Abdallah al-Muqtadi and his kunya was Abu'l-Abbas.

When his father died on 3 February 1094 at the age of 37 – 38. Al-Mustazhir succeeded him. At the time of accession to the throne, he was just sixteen years old. Just a months after is accession to the Caliphal throne al-Mustazhir became angry with his paternal grand aunt, In 1094, the new Caliph compelled his grand aunt, Sayyida bint Abdallah al-Qa'im to remain in her house lest she should intrigue for his overthrow. She died on 20 October 1102 during his reign.

Amid ad-Dawla would remain Abbasid vizier until 1099 She died in 1141–42. She died in 1133–34. Another concubine was Ashin. She was from Syria, and was the mother of the future Caliph Al-Muqtafi.

Succession Al-Mustazhir died in the year 1118 at the age of 40. He was succeeded by his son Al-Mustarshid as the 29th Abbasid Caliph.