Mohammad Taqi Mirza Rokn ed-Dowleh was a Persian prince of Qajar dynasty.
He was born in Tehran to King Mohammad Shah Qajar before 13 February 1842 (s/o a Zainab Khanum) and was created the title Rukn ud-Daula in 1868. He was governor of Tehran between 1856 and 1858, Khamseh 1866–1867 and 1872–1873, Zanjan 1876–1878, Governor-General of Khorasan 1876, 1881, 1883–1884, 1887–1888 and 1897, of Fars 1892–1893 and 1894–1897, and of Arabistan 1897–1901.[1]
He received the decoration of the Imperial Portrait, and the Order of the Lion and Sun 1st class.
He died in 1901, having had left behind eight sons and six daughters.
