When I visited Tabriz in the end of 1892, there were three physicians attached to the Vali Ahd's Court.

One was the Hakim Bashi, Mirza Mahmud Khan, a Persian of superior education and professional training, who was in constant attendance on the Prince, and with him were associated the English Dr.Adcock (who had then been four years in Tabriz, and is still with Mozuffer-ed-Din Shah), and an Italian doctor, S.Castaldi, brother of the wife of the Russian Consul-General, regarding whom I have no late information.
The succession of Mozuffer-ed-Din Shah so far has been peaceful, notwithstanding the fears of many that opposition would appear in the South.

This is the first time with the present dynasty that on the death of the Shah the Vali Ahd has found no rival in his path.

Curzon stated very decidedly in his important work on Persia that a contest for the throne was most improbable, and his forecast has proved correct.
Mozuffer-ed-Din Shah is the fifth Sovereign of the Kajar dynasty, which was founded by Agha Mohamed Shah, and I may here remark that the reign of the late Shah was just within one year of completing a century of royal rule shared by only three successive sovereigns of this line, a notable fact in an Oriental kingdom.
Fateh Ali Shah succeeded to the throne in 1797, having been appointed Vali Ahd by his uncle, Agha Mohamed Shah, who had no family of his own.
He was the son of Hussein Kuli Khan (full brother of the Shah), Governor-General at Shiraz, and he was there with his father when called to the throne at Tehran.

On the death of Agha Mohamed Shah in camp with his army on the Northern frontier, General Sadik Khan, chief of the Shekaki tribe in Azerbaijan, seized the opportunity to gain possession of the Crown jewels and treasure, and quitted the camp with his men; but the rest of the troops marched at the command of the strong Prime Minister Haji Ibrahim, to the capital, which by his orders was held by the Kajar chief, Mirza Mohamed Khan, for the legitimate heir of the Shah.