Sultan was a title in several Earth cultures equivalent to king.
Saladin was a Saracen Sultan of Egypt and Syria. (TV: The Crusade)
Mehmed II, also known as Mehmed the Conqueror, was a Turkish sultan in the 15th century. (AUDIO: Son of the Dragon)
The Sultan of the Tashwari founded St Oscar's University and gave it and all its nine colleges names. (PROSE: Oh No It Isn't!)