Guiscard soon rose to distinction. The Lombards turned against their erstwhile allies, and Pope Leo IX determined to expel the Norman freebooters. His army was defeated, however, at the Battle of Civitate sul Fortore in 1053 by the Normans, united under Humphrey. Humphrey commanded the centre against the pope's Swabian troops. Early in the battle Count Richard of Aversa, commanding the right van, put the Lombards to flight and chased them down, then returned to help rout the Swabians. Guiscard had come all the way from Calabria to command the left. His troops were held in reserve until, seeing Humphrey's forces ineffectually charging the pope's centre, he called up his father-in-law's reinforcements and joined the fray, distinguishing himself personally, even being dismounted and remounting again three separate times, according to William of Apulia. Honored for his actions at Civitate, Guiscard succeeded Humphrey as count of Apulia in 1057, over his elder half-brother Geoffrey. In company with Roger, his youngest brother, Guiscard carried on the conquest of Apulia and Calabria, while Richard conquered the principality of Capua.