marzuban ibn muhammad had designated his brother wahsudan ibn muhammad as his successor. when he came to azerbaijan, however, the commanders of the fortresses refused to surrender to him, recognizing instead marzuban's son justan i ibn marzuban i as his successor. unable to establish his rule in the province, wahusdan returned to tarum; justan was recognized as ruler in azerbaijan, with his brother ibrahim i ibn marzuban i made governor of dvin. justan seems to have been interested primarily in his harem, a fact which alienated some of his supporters, although he and ibrahim successfully put down a revolt by a grandson of the caliph al-muktafi in 960.