At the death of Emperor Basil II in 1025, the Byzantine Empire’s borders had largely stabilized. The late emperor’s military campaigns have re-established Roman control of the Balkan Peninsula. In the East, the re-garrisoning and reconstruction of depleted fortresses had strengthened the frontier.
But between 1025 and 1067, the Eastern Roman Empire suffered through the reign of 11 rulers, who oversaw a steady decline in imperial power. Finally, in 1068, Romanus IV Diogenes ascended to the throne. A veteran, but also impetuous military commander, the new emperor led two expeditions against the Seljuk Turks, a growing threat on the eastern border.
These were met with limited success, but the fortress of Hieropolis, near Aleppo, was recaptured. Romanus returned to Constantinople in 1070 to devote time to administrative matters, making numerous unpopular, but necessary reforms. The command of the army in the east was given to Manuel Comnenus, one of the best Byzantine generals.
However, a Seljuk army under Alp Arslan invaded the eastern territory, and defeated Manuel, capturing him in battle. Artkesh, Manzikert and Khilat fell into Seljuk hands, key fortresses near the strategically important Lake Van. With the core of his army dispersed in other theaters, Alp Arslan was not fully prepared for all out war with Romanus.
Instead of facing a possible Byzantine attack, the Sultan offered a peace treaty to Constantinople. This concluded, the Seljuk leadership turned its attention to the conflict with the Fatimid Caliphate of Egypt. Just a year later, in the spring of 1071, Romanus sent envoys to renew the treaty with the Seljuks.
It seemed he thought that Alp Arslan would reject extending the treaty, and he had already begun preparations for an expedition to retake the lost fortresses near Lake Van. Alp Arslan received the Roman envoys at his camp while besieging Aleppo. However, during diplomatic talks, Seljuk scouts reported the advance of the Byzantine army.
Alp Arslan rejected the treaty out of hand, raised the siege, and made way for the Armenian border, collecting additional troops from his allies and vassals en route. Meanwhile, passing through the province of Sebasteia, Romanus dismissed his Frankish mercenaries who had resorted to banditry while on the march, plundering and terrorizing the local population. By June 1071, the Emperor stopped at Theodosiopolis to resupply his army and take stock.
Some of his generals suggested outflanking Alp Arslan through northern Armenia and taking the fight deep into Seljuk territory. Others were in favor of digging in by fortifying local towns, reinforcing their garrisons, scorching the countryside to deprive the Seljuks of any supplies, and waiting for the sultan’s army. The latter option proved problematic, as the Byzantine army itself would be at risk of running out of supplies if they lingered in one place for too long.
Thus, the order was given to march on. Leaving Theodosiopolis, the troops were tasked with collecting provisions for a two-month campaign, including additional pack animals and carts, which considerably slowed down the advance. But, having received reports that Alp Arslan’s army was still in northern Mesopotamia, Romanus preferred a more methodical approach.
His plan was to take both Manzikert and Khilat in a simultaneous attack and then wait for the Sultan to make his move. But the emperor was badly misinformed on the whereabouts of the Seljuk army. Arp Arslan was not in Mesopotamia.
In fact, he was less than 100 kilometers away, his scouts reporting on the Byzantine’s army every move. By August, the Imperial army reached the region of the Lake Van. Thinking he had ample time before he would encounter the Seljuks, Romanus detached Roussel with the Frankish mercenaries and Joseph Tarchaneiotes with the elite Byzantine tagmata and archers, a force of some 20,000 troops, with orders to take and garrison Khilat.
The Emperor advanced on Manzikert and took the city with the remaining 20,000 men, mainly recruits from Anatolia, Armenia and Bulgaria, some Norman mercenaries, and Pecheneg, Turkish, Cuman, and possibly Magyar horse archers. Alp Arslan, meanwhile, had no more than 30,000 mostly-mounted troops at his command. Of these, some 6000 were variations of heavy cavalry, while the rest were lightly armored mounted archers.
Once the Sultan learned that Romanus had split his force, he rode out to meet him. The Byzantine vanguard soon encountered the forward elements of the Seljuk army. Mistaking them for a raiding party, they attacked!
As the Byzantine column kept trickling in, more troops joined the fight, but were unable to fight off the Seljuks. A message was sent back to the rear to request reinforcements, claiming that a substantial enemy force was on the battlefield. Romanus, frustrated that his vanguard was stuck fighting what he thought was a raiding party, begrudgingly ordered more troops to move to the front.
It took two hours for the men to catch up with the vanguard. Seeing the incoming enemy reinforcements, the Seljuks broke off and the Byzantines gave chase. It remains unclear how many troops were involved in the initial clash, but it is likely that this was a feigned retreat.
With the rest of the Byzantine column left far behind, the vanguard soon found themselves confronted by the main Seljuk army. A rain of arrows and the Seljuk heavy cavalry fell upon the now isolated Roman troops. What followed was near-complete annihilation.
Very few survivors managed to escape and report back to the Emperor, as night fell on the 24th of August. Having now realized that the ENTIRE Seljuk army was nearby, Romanus ordered the troops to prepare for a counterattack next morning. During the moonless night, Alp Arslan likewise took advantage of the darkness to make preparations of their own.
Seljuk riders screening the battlefield ran into and attacked a contingent of Uze mercenaries that were separated from the Byzantine line while purchasing supplies from traveling merchants. The Uze, thrown into disarray, hurried back towards friendly lines where some of them were cut down by their Byzantine comrades who mistook them for the attacking Seljuks. During the rest of the night, another 1,000 Uze mercenaries deserted with their commander Tamis, and joined the Seljuk side.
The deployment of troops and construction of camps was still ongoing during the next morning, 25th of August. Alp Arslan, sent an emissary to Romanus, offering a peaceful resolution. Little did the Emperor know that the Sultan was trying to buy time.
Roman commanders, Roussel and Tarchaneiotes, unaware of how close the Seljuk army was, approached Khilat. While in marching formation they were suddenly confronted by a substantial enemy force and it seems that both commanders turned about and hastily retreated. A portion of the Seljuk army went after the enemy, inflicting losses on the rear of the Byzantine column, but at some point they broke off the pursuit.
It is return of these troops that Alp Arslan was waiting for, thus trying to stall by sending envoys to Romanus. Meanwhile, it is unclear if Roussel and Tarchaneiotes intended to meet up with Romanus, who had by now changed his position and was stationed some 50 kilometers to the north. There are no records of them attempting to scout the area to find and rejoin the main Byzantine army – if attempts to locate Romanus were made, then they are lost to history.
Whatever took place, the 20,000 troops under Roussel and Tarchaneiotes never rejoined the Emperor. A day later, on the 26th of August 1071, the entire Seljuk army had by now reunited. Ironically, diplomatic talks had also broken down by this point.
Romanus ordered the army forward! Formed in three divisions, the Byzantines stretched their lines to match the frontage width of the Seljuks. On the left were 5000 cavalry, mostly made up of troops from the Balkans.
On the right, another 5000 Anatolian troops, mostly from Cappadocia and Armenia. A 3000 reserve was comprised of the levies of the nobility, mostly Greek feudal troops. Some 2000 Uze and Turkic steppe cavalry served as a screen in front of the two flanks.
Romanus had command of the 5000-strong Center Division, comprised of 500 elite Varangian Guard troops, heavy Armenian and Bulgarian infantry and a sizeable contingent of European mercenaries. While Alp Arslan now had the numerical advantage, he ordered the men to continue a slow, strategic withdrawal, knowing the power of the Byzantine heavy infantry and cavalry. Slowly a crescent-like shape formed as the Seljuk’s moved back, while their horse archers moved in front to harass the flanks of the lumbering Byzantine formation.
Being peppered for over an hour by a storm of arrows infuriated the Byzantine heavy cavalry, to the point they ignored their own military doctrine. While most kept their nerve, Romanus’ cavalry in the front lines broke rank and began pursuing the nimble Seljuk horsemen. The Emperor had a notable lack of archers and ranged missile troops, most of whom had departed with the ill-fated Khilat expedition.
This now rendered his army weak against the Seljuks’ numerous horse archers. Byzantine cavalry chased the Seljuk horsemen into foothills to the south. Gradually lured into the rugged terrain, they were lured into an ambush.
From the hillsides, thousands of steppe warriors rushed down. Once the trap was shut the slaughter was complete. Despite this setback, Romanus and his generals kept their men in good order in their southward march, with the Emperor believing that his strategy would allow his heavy infantry to smash into the crescent-shaped Seljuk line and force Alp Arslan to commit to a pitched battle.
But the lengthy duration of Alp Arslan’s retreat meant that the afternoon sun was waning into the horizon, and the Emperor knew that his camp was now vulnerable to a night raid. With the two opposing armies nearing the foothills, Romanus ordered the imperial standards to be reversed, giving the signal for his troops to commence an orderly retreat back to their camp. Romanus wheeled his horse around and began overseeing the slow reverse march back to camp near Manzikert.
By now, the Byzantines were probably some 12 kilometers south of Manzikert. But turning a large army around was an extremely difficult task in any situation, and Romanus’ force wasn’t disciplined enough to effectively carry out the maneuver. The multinational composition of his army meant that the order was given in various languages, adding to the confusion in the ranks.
As the Sultan watched the Byzantine army slowly crawl away, he knew this was the moment he was waiting for. Seizing the opportunity, the Sejluk Sultan launched a furious attack on the wings of the withdrawing and mangled Byzantine army. He ordered all of his Seljuk and allied cavalry forward, and they smashed into the backs of the stunned Byzantines.
The Seljuk reserve cavalry rode down from the hills to join in the melee. Faced with the Muslim cavalry assault on their flanks as the countermarch was already underway, the Byzantine right wing broke in confusion and split off from the center and left divisions. Many of these soldiers on the right flank broke ranks and fled for the safety of the distant fortified camp or Manzikert’s walls.
More and more Seljuk cavalry began pouring into the gap between the right and center divisions, cutting through the broken wings and sowing panic and confusion in the enemy’s center. With his right now flanked, Emperor Romanus looked frantically through the melee for his reserves - but to his dismay, they were gone. Commander of the reserve force, Andronikos Doukas, was fulfilling a plot against the Emperor, spreading word to his men that Romanus was defeated.
The Greek reservists watched nervously from their position as Seljuk Turks swarmed over the main Byzantine lines, and they ran back to the Byzantine camp and Manzikert. With the dissolution of the reserve line, a general rout began amongst the main formation. The Armenian heavy infantry and European mercenaries in the Center Division now joined in the flight.
However, about 2,000 allied Turkic cavalry remained by the Emperor’s side and were virtually annihilated. As the Center Division collapsed all around him, Emperor Romanus soon found himself surrounded by only his faithful Varangian Guard. Bryennios ordered his Left Division to support the Center, but these men were charged from behind by Seljuk cavalry, who broke and dispersed the shaken formation and forced them off the field.
The Emperor, surrounded by his Varangian Guard, stood his ground and even began turning his men southwards in an attempt to rally his broken units around his banners. But Romanus’ army was destroyed, and the shaken remains would not rally. Seljuk horse archers and lancers kept off any soldiers brave enough to try and reform their units.
The Greek reserves willfully abandoned their Emperor to his fate before they could even join the battle. Romanus continued fighting on until his horse was killed beneath him and, fighting on foot, he was wounded in his sword hand and taken prisoner. His Varangian Guard stayed with him until the end, fighting to the last man.
With the capture of Romanus, the Battle of Manzikert came to an end. Sources vary on the casualties, but anywhere between 2 - 8,000 Byzantines had been killed, with another 4,000 captured. It is not known how many men the Seljuks lost, but some estimates guess around 2,200.
The next day, when Romanus was brought before Sultan Alp Arslan in chains and flung to his feet, the Sultan at first could not believe this exhausted prisoner was the Byzantine Emperor, since the two had never met in person. Romanus was identified by Seljuk ambassadors to the Byzantine court. With the Emperor on his knees, Alp Arslan rose from his throne and demanded the disgraced ruler kiss the ground before him.
The Sultan then placed his foot on the neck of Romanus, completing his ritual of subjugation. Manzikert had been a decisive victory for the Seljuk Empire, paving the way for its expansion into Asia Minor. Meanwhile, the defeat was a catastrophe for Byzantium.
Although the loss off troops on the battlefield was not as significant as some chronicles stated, Manzikert nevertheless signaled the clear beginning of the end of the Byzantine Empire. It led to the loss of most of Anatolia to the Seljuks, who would only continue pressing further into the Empire’s heartland. The defeat at Manzikert and the new threat posed by the Seljuk Turks would also play a key role in causing the First Crusade, twenty-five years later.
Manzikert showed to the rest of Christian Europe that the Byzantines could no longer boast for being the protectors of Christianity and Christian pilgrims in the East. Long after the battle and its participants were gone, the shadow of Manzikert would loom large over the dying Byzantine Empire.