The mausoleum is located within what once was the Kasbah of Moulay Ismail. While you may hear the word "kasbah" and think "medina," "market," or "town," this is incorrect; a kasbah is a citadel or fortress. Ismail's kasbah contained three palaces, the earliest of which was called Dar al-Kebira. This is where the mausoleum is located.