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Shah of Iran

Nader suggested to his closest intimates, after a great hunting party on the Moghan plains (presently split between Azerbaijan and Iran), that he should be proclaimed the new king (shah) in place of the young Abbas III. The small group of close intimates, Nader's friends, included Tahmasp Khan Jalayer and Hasan-Ali Beg Bestami. Following Nader's suggestion, the group did not "demur", and Hasan-Ali remained silent. When Nader asked him why he remained silent, Hasan-Ali replied that the best thing for Nader to do would be assembling all leading men of the state, in order to receive their agreement in "a signed and sealed document of consent". Nader approved with the proposal, and the writers of the chancellery, which included the court historian Mirza Mehdi Khan Astarabadi, were instructed with sending out orders to the military, clergy and nobility of the nation to summon at the plains. The summonses for the people to attend had gone out in November 1735, and they began arriving in January 1736. In the same month of January 1736, Nader held a qoroltai (a grand meeting in the tradition of Genghis Khan and Timur) on the Moghan plains. The Moghan plain was specifically chosen for its size and "abundance of fodder ". Everyone agreed to the proposal of Nader becoming the new king, many—if not most—enthusiastically, the rest fearing Nader's anger if they showed support for the deposed Safavids. Nader was crowned Shah of Iran on 8 March 1736, a date his astrologers had chosen as being especially favorable, in attendance of an "exceptionally large assembly" composed of the military, religious and nobility of the nation, as well as the Ottoman ambassador Ali Pasha.

He cut a deal with notables and the clergy that he would only assume the position of Shah if they promised to refrain from cursing Omar and Uthman, avoid beating themselves to draw blood at the Ashura festival, accept Sunni practices as legitimate, and to obey Nader's children and relatives after his death, thereby setting up a dynasty in his name. He was effectively realigning Persia with Sunni Islam. The notables accepted.