Abu Bakr Muhammad
The first ruler fully attested to by the sources was Abu Bakr Muhammad b. Muzaffar b. Muhtaj. Under the Samanids he was the governor of Ferghana. When in 929 the Samanid amir Nasr b. Ahmad was temporarily expelled from power by his brothers, Muhammad remained loyal to him. As a result, when Nasr managed to restore himself he rewarded Muhammad with the governorship of Balkh, and then in 933 made him governor of Khurasan. During his time as governor of Khurasan, Muhammad battled various Dailamite bands in northern Iran. In 939 he fell ill and was removed from his post; he died in 941.
Read more about this topic: Al Muhtaj