Julius Caesar

"(July 100 BC – 15 March 44 BC)

was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....
Based on remarks by Plutarch, Caesar is sometimes thought to have suffered from epilepsy... Despite the commonly held belief that Caesar suffered from epilepsy, several specialists in headache medicine believe that a more accurate diagnosis would be migraine headache..."

Wiki page - http://en.wikipedia.org/wiki/Julius_Caesar