Battle of Manzikert The Battle of Manzikert was fought between the Byzantine Empire and the Seljuq Turks on August 26 , 1071 near Manzikert ( modern Malazgirt in Muş Province , Turkey ) . The decisive defeat of the Byzantine army and the capture of the Emperor Romanos IV Diogenes played an important role in undermining Byzantine authority in Anatolia and Armenia , and allowed for the gradual Turkification of Anatolia . The brunt of the battle was borne by the professional soldiers from the eastern and western tagmata , as large numbers of mercenaries and Anatolian levies fled early and survived the battle . The fallout from Manzikert was disastrous for the Byzantines , resulting in civil conflicts and an economic crisis that severely weakened the Byzantine Empire ' s ability to adequately defend its borders . This led to the mass movement of Turks into central Anatolia — by 1080 , an area of had been gained by the Seljuk Turks . It took three decades of internal strife before Alexios I Komnenos ( 1081 to 1118 ) restored stability to Byzantium . Historian Thomas Asbridge says : " In 1071 , the Seljuqs crushed an imperial army at the Battle of Manzikert ( in eastern Asia Minor ) , and though historians no longer consider this to have been an utterly cataclysmic reversal for the Greeks , it still was a stinging setback . " Background . Although the Byzantine Empire had remained a strong and powerful entity in the Middle Ages , the Empire began to decline under the reign of the militarily incompetent Constantine IX and again under Constantine X — a brief two - year period of reform under Isaac I Komnenos merely delayed the decay of the Byzantine military . Under the reign of Constantine IX , the Byzantines first came into contact with the Seljuk Turks , who attempted to annex Ani , the Armenian capital . Constantine IX secured a truce with the Seljuks that lasted until 1064 , when they conquered Ani . Constantine X did much discredit to his predecessor — in 1067 Armenia was taken by the Seljuks , followed by Caesarea . In 1068 , Romanos IV took power , and after a few speedy military reforms he entrusted Manuel Komnenos ( nephew of the late Isaac I Komnenos ) to lead an expedition against the Seljuks , allowing him to capture the city of Hierapolis Bambyce in Syria . A Turkish attack against Iconium was thwarted when a Byzantine counter - attack from Syria ended in victory . However , the campaign ended in a debacle when Manuel was defeated and captured by Seljuks led by Sultan Alp Arslan . Despite the failure of the campaign , the Sultan had been quick to seek a peace treaty with the Byzantines ; he regarded the Fatimid Caliphate of Egypt as his main enemy and had no desire to engage with the Byzantines in unnecessary hostilities . Hence , a peace treaty was signed between the Byzantines and the Seljuks in 1069 . In February 1071 , Romanos sent an embassy to Alp Arslan to renew the treaty of 1069 . The envoys reached the Sultan outside Edessa , which he was besieging . Keen to secure his northern flank against Byzantine attack , Arslan happily agreed to the terms . Abandoning the siege , he immediately led his army to the city of Aleppo to attack the Fatimid Caliphate of Egypt . However , the offer to renew the peace treaty was a key element of Romanos ' plan to distract the Sultan long enough to allow Romanos to lead a large army into Armenia and recover the lost fortresses before the Seljuks had time to respond . Preparations . Accompanying Romanos was Andronikos Doukas , the co - regent and a direct rival . The army consisted of about professional Byzantine troops from the western provinces and probably about the same number from the eastern provinces ; 500 Frankish and Norman mercenaries under Roussel de Bailleul ; some Turkic ( Uz and Pecheneg ) and Bulgarian mercenaries ; infantry under the duke of Antioch ; a contingent of Georgia n and Armenia n troops ; and some ( but not all ) of the Varangian Guard , to total around 40 , 000 to 70 , 000 men . The quantity of the Thematic ( provincial ) troops had declined in the years prior to the succession of Romanos as the central government diverted resources to the recruitment of mercenaries who were considered less likely to become involved in coups or factional fighting within the Empire . Even when mercenaries were used , they were disbanded after their use to save money . The march across Asia Minor was long and difficult , and Romanos did not endear himself to his troops by bringing a luxurious baggage train along with him ; the local population also suffered some plundering by Romanos ' Frankish mercenaries , whom he was forced to dismiss . The expedition first rested at Sebasteia on the Halys River , reaching Theodosiopolis in June 1071 . There , some of his generals suggested continuing the march into Seljuk territory and catching Arslan before he was ready . Some of the other generals , including Nikephoros Bryennios , suggested they wait there and fortify their position . Eventually it was decided to continue the march . Thinking that Alp Arslan was either further away or not coming at all , Romanos marched towards Lake Van , expecting to retake Manzikert rather quickly , as well as the nearby fortress of Khliat if possible . Arslan was actually in the area , however , with allies and cavalry from Aleppo and Mosul . Arslan ' s spies knew exactly where Romanos was , while Romanos was completely unaware of his opponent ' s movements . Romanos ordered his general Joseph Tarchaneiotes to take some of the Byzantine troops and Varangians and accompany the Pechenegs and Franks to Khliat , while Romanos and the rest of the army marched to Manzikert . This split the forces in half , each taking about men . It is unknown what happened to the army sent off with Joseph Tarchaneiotes — according to Islamic sources , Alp Arslan smashed this army ; Roman sources remain quiet of any such encounter , however , whilst Attaleiates suggests that Tarchaneiotes fled at the sight of the Seljuk Sultan — an unlikely event considering the reputation of the Roman general . Either way , Romanos ' army was reduced to less than half his planned 40 , 000 to 70 , 000 men . The battle . Romanos was unaware of the loss of Tarchaneiotes and continued to Manzikert , which he easily captured on August 23 ; the Seljuks responded with heavy incursions by bowmen . The next day some foraging parties under Bryennios discovered the Seljuk army and were forced to retreat back to Manzikert . The Armenian general Basilakes was sent out with some cavalry , as Romanos did not believe this was Arslan ' s full army ; the cavalry was destroyed and Basilakes taken prisoner . Romanos drew up his troops into formation and sent the left wing out under Bryennios , who was almost surrounded by the quickly approaching Turks and was forced to retreat once more . The Seljuk forces hid among the nearby hills for the night , making it nearly impossible for Romanos to counterattack . On August 25 , some of Romanos ' Turkic mercenaries came into contact with their Seljuk kin and deserted . Romanos then rejected a Seljuk peace embassy . He wanted to settle the eastern question and the persistent Turkic incursions and settlements with a decisive military victory , and he understood that raising another army would be both difficult and expensive . The Emperor attempted to recall Tarchaneiotes , who was no longer in the area . There were no engagements that day , but on August 26 the Byzantine army gathered itself into a proper battle formation and began to march on the Turkish positions , with the left wing under Bryennios , the right wing under Theodore Alyates , and the centre under the emperor . At that moment , a Turkish soldier said to Arslan , " My Sultan , the enemy army is approaching " , and Arslan is said to have replied , " Then we are also approaching them " . Andronikos Doukas led the reserve forces in the rear — a foolish mistake , considering the loyalties of the Doukids . The Seljuks were organized into a crescent formation about four kilometres away . Seljuk archers attacked the Byzantines as they drew closer ; the centre of their crescent continually moved backwards while the wings moved to surround the Byzantine troops . The Byzantines held off the arrow attacks and captured Arslan ' s camp by the end of the afternoon . However , the right and left wings , where the arrows did most of their damage , almost broke up when individual units tried to force the Seljuks into a pitched battle ; the Seljuk cavalry simply disengaged when challenged , the classic hit and run tactics of steppe warriors . With the Seljuks avoiding battle , Romanos was forced to order a withdrawal by the time night fell . However , the right wing misunderstood the order , and Doukas , as a rival of Romanos , deliberately ignored the emperor and marched back to the camp outside Manzikert , rather than covering the emperor ' s retreat . With the Byzantines thoroughly confused , the Seljuks seized the opportunity and attacked . The Byzantine right wing was almost immediately rout ed , thinking they were betrayed either by the Armenians or the army ' s Turkish auxiliaries . In fact the Armenians were the first to flee and they all managed to get away , while by contrast the Turkish auxiliaries remained loyal to the end . The left wing under Bryennios held out a little longer but was also soon routed . The remnants of the Byzantine centre , including the Emperor and the Varangian Guard , were encircled by the Seljuks . Romanos was injured and taken prisoner by the Seljuks . The survivors were the many who fled the field and were pursued throughout the night , but not beyond that ; by dawn , the professional core of the Byzantine army had been destroyed whilst many of the peasant troops and levies who had been under the command of Andronikus had fled . Captivity of Romanos Diogenes . When Emperor Romanos IV was conducted into the presence of Alp Arslan , the Sultan refused to believe that the bloodied and tattered man covered in dirt was the mighty Emperor of the Romans . After discovering his identity , Arslan placed his boot on the Emperor ' s neck and forced him to kiss the ground . A famous conversation is also reported to have taken place : Alp Arslan treated Romanos with considerable kindness and again offered the terms of peace that he had offered prior to the battle . Romanos remained a captive of the Sultan for a week . During this time , the Sultan allowed Romanos to eat at his table whilst concessions were agreed upon : Antioch , Edessa , Hierapolis , and Manzikert were to be surrendered . This would have left the vital core of Anatolia untouched . A payment of 10 million gold pieces demanded by the Sultan as a ransom for Romanos was deemed as too high by the latter , so the Sultan reduced its short - term expense by asking for 1 . 5 million gold pieces as an initial payment instead , followed by an annual sum of gold pieces . Plus , a marriage alliance was prepared between Arslan ’ s son and Romanos ’ daughter . The Sultan then gave Romanos many presents and an escort of two emirs and one hundred Mamluk s on his route to Constantinople . Shortly after his return to his subjects , Romanos found his rule in serious trouble . Despite attempts to raise loyal troops , he was defeated three times in battle against the Doukas family and was deposed , blinded , and exiled to the island of Proti . He died soon after as a result of an infection caused by an injury during his brutal blinding . Romanos ' final foray into the Anatolian heartland , which he had worked so hard to defend , was a public humiliation on a donkey with a rotten face . Aftermath . While Manzikert was a long - term strategic catastrophe for Byzantium , it was by no means the massacre that historians earlier presumed . Modern scholars estimate that Byzantine losses were relatively low , considering that many units survived the battle intact and were fighting elsewhere within a few months , and most Byzantine prisoners of war were later released . Certainly , all the commanders on the Byzantine side ( Doukas , Tarchaneiotes , Bryennios , de Bailleul , and , above all , the Emperor ) survived and took part in later events . The battle did not directly change the balance of power between the Byzantines and the Seljuks , however the ensuing civil war within the Byzantine Empire did , to the advantage of Seljuks . Doukas had escaped with no casualties and quickly marched back to Constantinople , where he led a coup against Romanos and proclaimed Michael VII as " basileus " . Bryennios also lost a few men in the rout of his wing . The Seljuks did not pursue the fleeing Byzantines , nor did they recapture Manzikert itself at this point . The Byzantine army regrouped and marched to Dokeia , where they were joined by Romanos when he was released a week later . The most serious loss materially seems to have been the emperor ' s extravagant baggage train . The result of this disastrous defeat was , in simplest terms , the loss of the Eastern Roman Empire ' s Anatolian heartland . John Julius Norwich says in his trilogy on the Byzantine Empire that the defeat was " its death blow , though centuries remained before the remnant fell . The themes in Anatolia were literally the heart of the empire , and within decades after Manzikert , they were gone . " In his smaller book , " " A Short History of Byzantium " " , Norwich describes the battle as " the greatest disaster suffered by the Empire in its seven and a half centuries of existence " . Sir Steven Runciman , in Chapter 5 of Volume One of his " History of the Crusades " , noted that " The Battle of Manzikert was the most decisive disaster in Byzantine history . The Byzantines themselves had no illusions about it . Again and again their historians refer to that dreadful day . " Anna Komnene , writing a few decades after the actual battle , wrote : Years and decades later , Manzikert came to be seen as a disaster for the Empire ; later sources therefore greatly exaggerate the numbers of troops and the number of casualties . Byzantine historians would often look back and lament the " disaster " of that day , pinpointing it as the moment the decline of the Empire began . It was not an immediate disaster , but the defeat showed the Seljuks that the Byzantines were not invincible — they were not the unconquerable , millennium - old Roman Empire ( as both the Byzantines and Seljuks still called it ) . The usurpation of Andronikos Doukas also politically destabilized the empire and it was difficult to organize resistance to the Turkish migrations that followed the battle . Within a decade almost all of Asia Minor was overrun . That process was in part facilitated by the " central plains of Anatolia ( having been ) emptied and turned into sheep farms by the Byzantine magnates themselves " ( Runciman ) . Finally , while intrigue and the deposition of Emperors had taken place before , the fate of Romanos was particularly horrific , and the destabilization caused by it also rippled through the empire for centuries . What followed the battle was a chain of events — of which the battle was the first link — that undermined the Empire in the years to come . They included intrigues for the throne , the fate of Romanos , and Roussel de Bailleul attempting to carve himself an independent kingdom in Galatia with his Frankish , Norman , and German mercenaries . He defeated the Emperor ' s uncle John Doukas , who had come to suppress him , advancing toward the capital to destroy Chrysopolis ( Üsküdar ) on the Asian coast of the Bosphorus . The Empire finally turned to the spreading Seljuks to crush de Bailleul ( which they did ) . However the Turks ransome d him back to his wife , and it was not before the young general Alexios Komnenos pursued him that he was captured . These events all interacted to create a vacuum that the Turks filled . Their choice in establishing their capital in Nikaea ( Iznik ) in 1077 could possibly be explained by a desire to see if the Empire ' s struggles could present new opportunities . In hindsight , both Byzantine and contemporary historians are unanimous in dating the decline of Byzantine fortunes to this battle . As Paul K . Davis writes , " Byzantine defeat severely limited the power of the Byzantines by denying them control over Anatolia , the major recruiting ground for soldiers . Henceforth , the Muslims controlled the region . The Byzantine Empire was limited to the area immediately around Constantinople , and the Byzantines were never again a serious military force . " It is also interpreted as one of the root causes for the later Crusades , in that the First Crusade of 1095 was originally a western response to the Byzantine emperor ' s call for military assistance after the loss of Anatolia . From another perspective , the West saw Manzikert as a signal that Byzantium was no longer capable of being the protector of Eastern Christianity or of Christian pilgrims to the Holy Places in the Middle East . Delbrück considers the importance of the battle to be exaggerated , but the evidence makes clear that it resulted in the Empire being unable to put an effective army into the field for many years to come . The Battle of Myriokephalon , also known as the Myriocephalum , has been compared to the Battle of Manzikert as a pivotal point in the decline of the Byzantine Empire . In both battles , separated by over a hundred years , an expansive Byzantine army found itself ambushed by a more elusive Seljuk opponent . The implications of Myriocephalum were initially limited , however , thanks to Manuel I Komnenos holding on to power . The same could not be said of Romanos , whose enemies " martyred a courageous and upright man " , and as a result " the Empire . . . would never recover " .