Battle of Civitate The Battle of Civitate ( also known as Battle of Civitella del Fortore ) was fought on 18 June 1053 in Southern Italy , between the Normans , led by the Count of Apulia Humphrey of Hauteville , and a Swabian - Italian - Lombard army , organised by Pope Leo IX and led on the battlefield by Gerard , Duke of Lorraine , and Rudolf , Prince of Benevento . The Norman victory over the allied papal army marked the start of a conflict that ended with the formal recognition of the Norman conquest in South Italy by Pope Nicholas II in 1059 , with Robert Guiscard as Duke of Apulia , Calabria , and Count of Sicily . Background . The arrival of the Normans in Southern Italy . The Normans had arrived in Italy in 1017 , in a pilgrimage to the sanctuary of St . Michael Archangel in Monte Sant ' Angelo sul Gargano ( Apulia ) . These warriors had been used to counter the threat posed by the Saracens , who , from their bases in Sicily , raided South Italy without much resistance from the Lombard and Byzantine rulers of the affected lands . The availability of this mercenary force ( the Normans were famous for being " militariter lucrum quaerens " , " seeking wealth through military service " ) could not escape the Christian rulers of South Italy , who employed the Normans in their internal wars . And the Normans took advantage of this turmoil : in 1030 , Rainulf Drengot obtained the County of Aversa . After this first success , many other Normans sought to expand into Southern Italy . Among their most important leaders were Hauteville family members . In short time , the Hauteville created their own state : William Iron Arm became , in 1042 , Count of Apulia . The anti - Norman coalition . The Norman advances in southern Italy had alarmed the papacy for many years , though the impetus for the battle itself came about for several reasons . First , the Norman presence in Italy was more than just a case of upsetting the power balance , for many of the Italian locals did not take kindly to the Norman raiding and wished to respond in kind , regarding them as little better than brigands . An abbot from Normandy , John of Fécamp , for example wrote of such local sentiments in a letter to Pope Leo himself : " " Hatred by the Italians for the Normans has now developed so much and become so inflamed througout the towns of Italy that scarcely anyone of the Norman race may travel safely on his way , even he be on a devout pilgramage , for he will be attacked , dragged off , stripped , beaten up , clapped into chains , and often indeed will give up the ghost , tormented in a squalid prison . " " The raiding activities which brought about such hatred also occurred in the see of Benevento , a deed not emphasized in the Norman chronicles , but for Pope Leo this was the more significant concern in the political instability of the region . In fact , according to Graham Loud , the Beneventians , who previously had been approached by both the German Emperor Henry III and by the Pope previously to swear fealty , finally appealed and submitted to Leo to personally take over the control of the city ( as well as lifting a previous excommunication ) in 1051 . At this point , Benevento was also the border and march land between Rome and the German Empire and the newly established Norman holdings . The second reason behind the conflict of Civitate was the instability brought about on the Norman side by the death of Drogo de Hauteville , who up to that time was the nominal war leader of the Normans and Count of Apulia , and who was later murdered in unclear circumstances . According to Malaterra ' s account , the native Lombards were responsible for the plot , and a courtier named Rito committed the deed at the " castrum " of Montillaro . Despite the benefit the pope and both Greek and German emperors would have drawn from his murder , it is difficult to speculate beyond Malaterra ' s report since the details of the murder do not appear in most other sources , particularly the Norman chronicles . Nevertheless , there was certainly a strong reaction to Drogo ' s death , with his brother Humphrey taking over the leadership position of his brother , and scouring the countryside and his enemies in response : " " He set off to exact punishment for Drogo ' s death , and after a lengthy siege he finally captured the castrum at which his brother had been killed . He inflicted all sorts of tortures on his brother ' s murderer and his accomplices , and after a while the anger and grief he felt in his heart were quenched by their blood . " " Finally , in 1052 , Leo met his relative Henry III , Holy Roman Emperor in Saxony , and asked for aid in curbing the growing Norman power . Initially , substantial aid was refused and Leo returned to Rome in March 1053 with only 700 Swabian infantry . But there were others worried about the Norman power , in particular the Italian and Lombard rulers in the south . The Prince of Benevento , Rudolf , the Duke of Gaeta , the Counts of Aquino and Teano , the Archbishop and the citizens of Amalfi — together with Lombards from Apulia , Molise , Campania , Abruzzo and Latium — answered the call of the Pope , and formed a coalition that moved against the Normans . However , while these forces included troops from almost every great Italian magnate , they did not include forces from Prince of Salerno , who would have gained more than the others from a Norman defeat . The Pope had also another friendly power , the Byzantine Empire ruled by Constantine IX . At first , the Byzantines , established in Apulia , had tried to buy off the Normans and press them into service within their own largely mercenary army ; since the Normans were famous for their avarice . So , the Byzantine commander , the Lombard Catepan of Italy Argyrus , offered money to disperse as mercenaries to the Eastern frontiers of the Empire , but the Normans rejected the proposal , explicitly stating that their aim was the conquest of southern Italy . Thus spurned , Argyrus contacted the Pope , and when Leo and his army moved from Rome to Apulia to engage the Normans in battle , a Byzantine army personally led by Argyrus moved from Apulia with the same plan , catching the Normans in a pinch . The Normans understood the danger and collected all available men and formed a single army under the command of the new Count of Apulia and Drogo ' s eldest surviving brother , Humphrey of Hauteville , as well as the Count of Aversa , Richard Drengot , and others of the de Hauteville family , amongst which was Robert , later known under the name of Robert Guiscard . The battle . Despite several contemporary sources of the background and lead - up to the battle , the narrative source which gives the most detail of the battle itself is the " Gesta Wiscardi " of William of Apulia . To begin with , Leo moved to Apulia , and reached the Fortore River near the city of Civitate ( or Civitella , northwest of Foggia ) . The Normans went forth to intercept the Papal army near Civitella and prevent its union with the Byzantine army , led by Argyrus . The Normans were short on supplies because of the harvest season , and had fewer men than their enemies , with no more than 3 , 000 horsemen and 500 infantry against 6 , 000 horsemen and infantry . Both Amatus ' account and William of Apulia agree that the Normans were suffering from hunger and lack of nutrition , and both also add that the Normans forces were in fact so lacking that they , " by the example of the Apostles took the heads of grain , rubbed them in their hands , and ate the kernels , " some may have cooked them over the fire beforehand as well . Because of this , the Normans were driven to ask for a truce , but were refused , though there is some disagreement on who the greater enemies of the Normans were in refusing the negotiations , varying between the Lombards , the Germans , and the curia of Pope Leo himself , whom the Normans in fact wish to swear their " fidelitas " . The two armies were divided by a small hill . The Normans put their horsemen in three companies , with the heavy cavalry of Richard of Aversa on the right , Humphrey with infantry , dismounted knights and archers in the center , and Robert Guiscard , with his horsemen and his infantry ( the " sclavos " , the Slavic infantry ) , on the left . Other Norman commanders included Peter and Walter , the illustrious sons of Amicus , Aureolanus , Hubert , Rainald Musca , and Count Hugh and Count Gerard , who commanded respectively the Beneventans and the men of Telese , and also Count Radulfus of Boiano . In front of them , the Papal army was divided into two parts , with the heavy Swabian infantry on a thin and long line from the center extending to the right , and the Italian levies amassed in a mob on the left , under the command of Rudolf . Pope Leo was in the city , but his standard , the " vexillum sancti Petri " , was with his allied army . The battle started with the attack of Richard of Aversa against the Italians on the left with a flanking movement and charge . After moving across the plain , they arrived in front their opponents , who broke formation and fled without even trying to resist . The Normans killed many of them as they retreated and moved further towards the Papal field - camp , before eventually attempting to return to the main engagement . The Swabians , in the meantime , had moved to the hill , and came into contact with the Norman center and the forces of Humphrey , skirmishing with arrows and archers before entering a general melee . Most likely , this engagement was primarily on foot , as the Germans are often referred to as " taking up their swords and shields " , William of Apulia adds that this was a part of their German character : " " There were proud people of great courage , but not versed in horsemanship , who fought rather with the sword than with the lance . Since they could not control the movements of their horses with their hands they were unable to inflict serious injuries with the lance ; however they excelled with the sword . These swords were very long and keen , and they were often capable of cutting someone vertically in two ! They preferred to dismount and take guard on foot , and they chose rather to die than to turn tail . Such was their bravery that they were far more formidable like this than when riding on horseback . " " The fight with the Swabians was the main focus of much of the battle , with the Normans attempting to flank the Swabians while Humphrey engaged them . Robert Guiscard , seeing his brother in danger , moved with the left wing to the hill , and succeeded in easing the Swabian pressure , and also displayed his personal bravery with the aid of the Calabrians under the command of Count Gerard . The situation on the center however , remained balanced . Yet thanks to the continued Norman discipline in holding the line against the Swabians , the day was at last decided by the return of Richard ' s forces from pursuing the Italians , which resulted in the defeat of the Papal coalition . Aftermath . After preparing a siege of the town of Civitate itself , the Pope was taken prisoner by the victorious Normans . There is some uncertainty over how this happened . Papal sources say that Leo left Civitate and surrendered himself to prevent further bloodshed . Other sources including Malaterra indicate that the inhabitants of Civitate handed over the Pope and drove him " out of the gates , " after seeing the Norman threat manifested in siege towers and earthen ramparts . He was treated respectfully but was imprisoned at Benevento for almost nine months , and forced to ratify a number of treaties favorable to the Normans . However , according to the Norman accounts , Leo was treated more as an honored guest than as a prisoner , and by no means lacked for comforts , Amatus claims that " they continually furnished him with wine , bread , and all the necessities , " and was " protected " by the Normans until he returned to Rome ten months later . According to John Julius Norwich , Leo attempted a long , passive resistance to agreeing to anything for the Normans , and was waiting for an imperial relief army from Germany . In addition , Norwich believes that despite the lack of concrete support until later popes , Leo did eventually acknowledge the Normans as the rulers of the South in order to get a release for his freedom . Meanwhile , Argyros and the Byzantine army were forced to disband and return to Greece via Bari , since their forces were not strong enough to fight the Normans now that the papal forces had been defeated . Argyros may even have been banished from the Empire by Constantine himself . More importantly , the Battle of Civitate proved to be a turning point in the fortunes of the Normans in Italy , who were able to win a victory despite their differences even among themselves , and solidifying their legitimacy in the process . Not only that , it was the first major victory for Robert Guiscard , who would eventually rise to prominence as the leader of the Normans in the South . In terms of its implications , the Battle of Civitate had the same long - term political ramifications as had the Battle of Hastings in England and Northern Europe , a reorientation of power and influence into a Latin - Christendom world . Finally , while Leo attempted to maintain an anti - Norman alliance with the Byzantines in hopes of driving them out on religious grounds , the inability of the papal legates to negotiate with the Greek court in addition to Leo ' s untimely death negated any hope for aid from the Byzantines , except at the command of the Eastern emperor himself . The schism , in this case , worked to the favor of the Normans at least in the political realm . After six more years , and three more anti - Norman popes , the Treaty of Melfi ( 1059 ) marked the recognition of the Norman power in South Italy . There were two reasons for this change in papal politics . First , the Normans had shown to be a strong ( and close by ) enemy , while the emperor a weak ( and far away ) ally . Second , Pope Nicholas II had decided to cut the bonds between the Roman Church and the Holy Roman emperors , reclaiming for " the Roman cardinals the right to elect the pope ( see Investiture Controversy ) , thus reducing the importance of the emperor . And in the foreseeable struggle against the Empire , a strong ally was more important than a strong enemy .