Mu'ayyid al-Mulk

[2] The family belonged to the aristocratic dehqan class of land-owning magnates, and was native to the eastern Iranian region of Khurasan.

[3] Mu'ayyid al-Mulk spent the first ten years of Malik-Shah I's reign (r. 1072–1092) in Baghdad and Jazira, where he was the deputy of his father and the sultan in almost the same manner as that of a viceroy.

The Nizamiyya (supporters of Nizam al-Mulk) and the prominent families of Isfahan also joined Muhammad, stopping Berkyaruq from entering the city.

[5] The rebellion was launched from Muhammad's base at the city of Ganja in Arran, which had been given to him as a iqta' (land grant) by Berkyaruq back in 1093.

Sa'd al-Dawla Gawhara'in, the shihna (military administrator) of Baghdad, soon joined Muhammad, which implies that the city was also added to his domain.

[7] In 1101, Muhammad's forces were defeated in a battle near Hamadan, which resulted in the capture of Mu'ayyid al-Mulk, who was taken to Berkyaruq, who had him personally killed.