Taj ol-Dowleh (Persian: تاجالدوله, died 1881) was the forty-second wife of Fath-Ali Shah Qajar and a poet.
Her birth name was Tavus Khanum (Persian: طاووس خانم, romanized: Tāvus Xānom) and she was of Georgian descent.
Every Nowruz she used to invite the shah along with his wives and married daughters to her mansion for thirteen days.
[4] At the moment of the shah's death, she was beside him in Isfahan and after that she took refuge to Mohammad Bagher Shafti from the princes' clashes for the throne.
After the enthronement of Mohammad Shah Qajar she donated all of her jewelry to him and went on a Hajj trip with her son, Seyf Al-Duleh.