Gnaeus Pompeius was executed , but young Sextus escaped once more , this time to Sicily .
In 45 BC , Caesar managed to defeat the Pompeius brothers in the Battle of Munda , in Hispania ( the Iberian Peninsula , comprising modern Spain and Portugal ) .
Pompeius   was executed , but young Pompeius escaped once more , this time to Sicily .
In 45 BC , Caesar managed to defeat the Pompeius brothers in the Battle of Munda , in Hispania ( the Iberian Peninsula , comprising modern Spain and Portugal ) .