Muhammad Shah died on the eve of the sixth of Shavval (September 4, 1848 A.D.). "There was an interregnum of about two months. A provisional government was formed comprising four administrators under the presidency of the widow of the deceased Shah. Finally after much hesitation, the lawful heir, the young Prince Nasiri'd-Din Mirza, governor of Adhirbayjan was permitted to ascend the throne." (Journal Asiatique, 1866, tome 7, p. 367.)