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He was the eldest son of Nasser-al-Din Shah and Effat-od-Dowleh, and the brother of Kamran Mirza Nayeb es-Saltaneh and of Mozzafar-al-Din Mirza (who eventually became Mozzafar-al-Din Shah), but Mas’oud Mirza could not ascend the throne because his mother not from the Qajar dynasty’s family group.
