2e PHB - count the number with divine heritage (*or claimed in the case of Alexander). Hero in Greek was literally defender but also basically meant demigod.
"The fighter is a warrior, an expert in weapons and, if he is clever, tactics and strategy.There are many famous fighters from legend: Hercules, Perseus, Hiawatha, Beowulf, Siegfried, Cuchulain, Little John, Tristan, and Sinbad. History is crowded with great generals and warriors: El Cid, Hannibal, Alexander the Great, Charlemagne, Spartacus, Richard the Lionheart, and Belisarius."