Taj al-Din Khatun Safariyya

• from Continuity and Change in Medieval Persia by Ann K. S. Lambton:

"Abu Tahir Sa'd b. Ali b. Isa Qummi, who was wazir to Sanjar from 515/1121-2 until his death in 516/ 1122-3, had formerly been wazir to Taj al-Din Khatun Safariyya, the mother of Muhammad and Sanjar. Several of the Saljuq women held large estates, and the duties of the wazir to the wife of the sultan were probably mainly connected with the management of their personal estates."

Note: a wazier is a vizier or a chancellor.

Also from the same source:

When Mahmud b. Muhammad rebelled against Sanjar in 513/1119-20, his mother, who was also Mahmud’s grandmother, apparently persuaded Sanjar to make peace with his nephew.

• Khatun Safariyya is mentioned on page 224 of the Cambridge History of Iran, Volume 5.

Some of the wives had their own divans and viziers, and were women of substance; Sanjar's mother, for instance, had her own mamluks. It appears to have been usual for the sultans' wives to have personal estates.