There are mosques all over the medina; interiors are off-limits to non-Muslims. The finest include Mosque of the Dyers, built in 1716 by Hussein ben Ali, founder of the Husseinite line of beys (provincial governors). It has an adjoining medersa (Quranic school), and an Ottoman octagonal minaret. Hussein buried two holy men in the mausoleum, leaving a space between them for his own tomb, but his nephew Ali Pasha drove him from power and buried his own father in Hussein's spot.