The Ilyāsids were a minor ruling house that controlled parts of the Iranian province of Kirmān from 320/932 to 357/968. They rose to power in the vacuum that was left behind with the deterioration of Ṣaffārid rule (r. 247-393/861-1003) in south-eastern Iran. In 288/900-1, the province had fallen to the Sāmānid Ismāʿīl b. Aḥmad (r. 279-95/892-907), who installed as governor the Ṣaffārid Ṭāhir b. Muḥammad b. ʿAmr (r. 287-96/900-9). Contending brigands and runaway armies competed for