 Carthage rebuilt her fortunes by conquering parts of Iberia under the leadership of Hamilcar, Hasdrubal and Hannibal during 237-218 BC.Rome, at the instigation of Massalia, signed a treaty with Hasdrubal the Fair in 226 BC, which established the Ebro as the limit of Carthaginian power in Iberia.The city of Saguntum, located south of the river, became an ally of Rome some time after 226 BC.