I want to know the answer to the following question:
What is the most widely known madrasah?
All the background I'm provided with is that "Madaris were established throughout the Islamic world, examples being the 9th century University of al-Qarawiyyin, the 10th century al-Azhar University (the most famous), the 11th century Niẓāmīyah, as well as 75 madaris in Cairo, 51 in Damascus and up to 44 in Aleppo between 1155 and 1260.". Is that enough to answer the question?