أحمد بن طولون
Al-Qaṭāʾi () was the short-lived Tulunid capital of Egypt, founded by Ahmad ibn Tulun in the year 868 CE. Al-Qata'i was located immediately to the northeast of the previous capital, al-Askar, which in turn was adjacent to the settlement of Fustat. All three settlements were later incorporated into the city of Cairo, founded by the Fatimids in 969 CE. The city was razed in the early 10th century CE, and the only surviving structure is the Mosque of Ibn Tulun.