Jawhar founded a new royal city—al-Qahira (Cairo)—as the Fatimid seat of power in Egypt. The site was laid out as a palace-city northeast of Fustat, designed around caliphal palaces and a central ceremonial spine.
A major Fatimid expedition under the general Jawhar al-Siqilli set out from Ifriqiya toward Egypt, initiating the campaign that would topple Ikhshidid rule and enable a new Fatimid capital to be founded near Fustat.
Fatimid forces captured/secured Fustat, effectively completing the takeover of Egypt and clearing the way for Jawhar to establish a new palace-city just northeast of the older settlement.
Jawhar ordered the building of a congregational mosque for the new city. Work on what became al-Azhar Mosque began in April 970, anchoring Cairo’s religious life and serving Fatimid state purposes (including Isma'ili mission activities).
An anti-Fatimid coalition led by the Qarmatians invaded, pushing into Lower Egypt. Jawhar organized defenses north of the still-developing Cairo and ultimately stopped the incursion, demonstrating the strategic value of Cairo’s defensive works and planning.
Construction of al-Azhar finished in 972, and it began functioning as Cairo’s major congregational mosque. Its early Fatimid role included hosting official sessions and serving as a key institutional platform in the new capital.
After the Qarmatian thrust and related unrest, Fatimid forces intensified suppression of rebellions (notably in the Delta), consolidating control so the caliphal court could relocate safely to Egypt.
Caliph al-Mu'izz li-Din Allah and his court arrived from Ifriqiya and took up residence in Cairo, marking the definitive transfer of the Fatimid imperial center to Egypt and accelerating Cairo’s early administrative and ceremonial development.
A renewed Qarmatian attempt to destabilize Fatimid rule in Egypt failed. The successful defense helped secure Cairo’s position as the functioning seat of government and reduced the immediate external threat to early Fatimid consolidation.
Formal instruction at al-Azhar is dated by al-Azhar’s institutional history to October 975, when the chief judge Abu al-Hasan Ibn al-Nu'man delivered an initial teaching session (halaqa), an early milestone in al-Azhar’s evolution into a major center of learning.
Al-Mu'izz died in December 975 and was succeeded by al-Aziz Billah. This transition mattered for Cairo’s early development because the first Fatimid caliph to begin his reign in Egypt continued consolidating the new capital’s institutions.
Under al-Aziz, Ya'qub ibn Killis became vizier (979), strengthening central administration and fiscal organization in the new capital. His tenure is frequently linked to the consolidation of Fatimid governance and patronage of learning in Cairo.
Al-Aziz initiated a second major congregational mosque for Cairo—later known as the Mosque of al-Hakim—around 990. Its scale and location near the northern gate area reflected Cairo’s growth beyond the initial palace-city core.
Foundation and Early Development of Cairo and al-Azhar (969–1000)
