Sayyid Muhammad-Hassan Murtadha Dhiya al-Din (Arabic: محمد حسن مرتضى آل ضياء الدين; 1889 – January 2, 1953), also known as Agha Hassan al-Killidar, was an Iraqi nobleman that served as the 20th custodian of the al-Abbas shrine from 1938 until 1953.
He hails from the noble Al Faiz family, and his ancestor Dhiya al-Din al-Faizi was the naqib of Karbala in 1622.
This sad issue ran for more than a decade, until Dhiya al-Din took it on himself to end this feud, and invited both mawakeb to his famous al-Buqcha garden, for a large feast, and formed a peace treaty between them.
[10] In February of 1952, the oil agreement instigated opposition parties to spark protests across the country, and so a march set out in Karbala, and the situation quickly escalated.
This encounter caused a fringe in the relationship between Dhiya al-Din and al-Jamil, which led Dhiya al-Din to personally call the prime minister, Nuri al-Said telling him that either one of them will have to leave Karbala, to which al-Said replied: "You will remain, and Mekki al-Jamil will leave Karbala today!"