Mohammad Taqi Mirza (also written
Mohammad Taghi Mirza) was born on 5 October 1791 in
Tehran as Fath-Ali Shah's 7th son by the latter's temporary (
sighe) wife Zeynab Khanom, daughter of Ali Mardan Khan Bakhtiari, supreme chief of the Chahar Lang division of the
Bakhtiari tribe. Thus, he was one of the shah's twelve senior sons attending the official receptions at court depicted in several portraits. His only full sister was Princess Maryam Khanom (Fath-Ali Shah's 5th daughter). In 1818, he commanded the attack on the Castle of Shirvan and his father, the shah, entitled him
Hessam os-Saltaneh (). After his eldest brother
Mohammad-Ali Mirza Dowlatshah, the governor-general of Kermanshah, died from cholera in 1823, Mohammad Taqi Mirza was made governor of that province in 1826–1829. In 1831–1834, he was made governor of Boroujerd. At his father's death in 1834, he was with some brothers imprisoned in the Ardabil citadel by the prime minister to avoid any attempts against the succession of the princes' nephew
Mohammad Shah Qajar. He was released in 1848 by the next Qajar ruler
Naser al-Din Shah. Mohammad Taqi Mirza was also a poet under the pen name "Shokat". with his twelve senior sons. At the shah's left hand side, upper row, third person is Mohammad Taqi Mirza. ==Family==