Abu Tamim Ma'ad al-Mu'izz li-Din Allah was the fourth Fatimid caliph and the 14th Ismaili imam, reigning from 953 to 975. It was during his caliphate that the center of power of the Fatimid dynasty was moved from Ifriqiya (modern Tunisia) to Egypt. The Fatimids founded the city of Cairo (al-Qāhirah, "the Victorious") in 969 as the new capital of the Fatimid Caliphate in Egypt.