When Dyrrhachus was attacked by his own brothers, Heracles, who was passing through the area, came to his aid, but in the fight the hero killed his ally's son by mistake.
Cando Dyrrhachus foi atacado polos seus propios irmáns, Hércules, que estaba pasando pola zona, acudiu na súa axuda, pero na loita o heroe matou o fillo do seu aliado por erro.