Fatimid Caliph and religious figure (985 - 1021)
The sixth Fatimid caliph, Al-Hakim, was known for his erratic, often destructive decrees, including the burning of Cairo's Christian quarter and the establishment of the Druze faith. His reign created hidden chambers, false passageways, and secret police networks that turned the city of Cairo into a paranoid, layered labyrinth.