In 945, Ahmad entered Iraq and made the Abbasid Caliph his vassal, at the same receiving the laqab "Mu'izz ad-Dawla" ("Fortifier of the State"), while 'Ali was given the laqab "Imād al-Dawla" ("Support of the State"), and Hasan was given the laqab "Rukn al-Dawla" ("Pillar of the State").