Roger II [1095-1154] -- of Sicily, King

Wiki: Roger II of Sicily

Upstart king of the once-Muslim Sicily, Roger II, commissioned the first global map of the world from the Muslim geographer al-Idrisi. The map, completed about 1138, depicted the world as occupying one full hemisphere, or 180 degrees, stretching from Korea in the East to the Canary Islands in the West. [From The Times: January 22, 2009]  
 

1138