Sayyid Hasan ar-Rida al-Mahdi as-Senussi was the Crown Prince of the Kingdom of Libya from 1956 to 1969, when the Libyan coup d'état resulted in the monarchy being abolished.
Crown Prince Hasan (centre), to the left prime minister Abdul Majid Kubar and Taher Bakeer, Governor of Tripolitania and father-in-law.
Crown Prince Hasan shaking hands with Hussein Maziq, governor of Cyrenaica. Wanis al-Qaddafi and General Mahmud Buguaitin are standing behind the prince.
Hussein Yousef Maziq was a Libyan politician who was Prime Minister of Libya from 20 March 1965 to 2 July 1967. He was one of the most important men in the Kingdom era of Libya.