13.2.3 The Battle of Manzikert and the Call from the East

While the Islamic world was undergoing the devolution of Abbasid power, the Byzantine Empire could not take advantage of its weakness. The Byzantines had experienced an earlier period of cultural and military dominance under the powerful Macedonian dynasty (867–1025), whose warrior-emperors had been able to push back against Muslims to the east and Slavic peoples to the west. The resulting stability had brought a period of cultural production and innovation sometimes called the Macedonian Renaissance. Its artwork later influenced Italian art and anticipated developments in the Italian Renaissance (Figure 13.15).

At the end of the Macedonian period, the Byzantine emperor’s ability to navigate the economic and military situation deteriorated. Ineffective rulers and conflict over successors to the Macedonian dynasty rendered the empire less militarily capable. The Byzantines also lost control of their overseas territories, especially southern Italy and Sicily, which had been sources of trade and revenue. Islamic and Italian navies began to dominate trade in the Mediterranean. As direct trade between the Christian West and the Islamic world increased, the economic position of the Byzantine Empire as an intermediary began to decline. Byzantine rulers attempted to establish marriage alliances with Slavic rulers and even Norman adventurers who were active in Sicily and southern Italy. Although such allies were eager to associate themselves with the prestige of the Byzantine Empire, they were just as likely to gain it by attacking the empire and carving out a state for themselves. All around them, the Byzantine emperors saw inconstant allies and ferocious enemies.

The challenges the Byzantine Empire faced were not limited to external rivals. Its rulers faced the same problem as the Abbasid caliphs: powerful actors within their own empire who sought to exploit the weaknesses of the rule to enrich their families. Macedonian emperors such as Basil II had issued legislation to curb the power of these elites, called the dynatoi, by ensuring they were taxed heavily, and their massive estates were broken up and distributed to the peasants who served in the armies. Basil was succeeded by less competent or less secure emperors who were compelled to rely on the dynatoi for support and reversed his policies. This harmed the peasant backbone of the army and emboldened the elite, who rewarded the patronage of the emperors with schemes to control or replace them. Like the Abbasids, the rulers then had to balance external threats and challenges with internal ones in a complex search for stability.

One of the dynatoi became Emperor Romanos IV in 1068. Romanos was a capable general who wanted to reverse the empire’s losses to the Seljuks. The neglect of the army by previous emperors meant that he had to rely on foreign mercenaries, who did not get along with each other and who plundered Byzantine territory if they were not paid on time. Romanos had some earlier successes against the Seljuks, whose raids under Alp Arslan had become bloody and bitter affairs. He hoped to take back strategic areas in eastern Anatolia while Alp Arslan was fighting the Fatimids.

Alp Arslan was not as far away as Romanos had hoped, however, and the armies met near the town of Manzikert. Some of Romanos’s mercenaries abandoned him before the battle, and at a decisive moment, he was betrayed by his own aristocratic rivals who failed to protect the army during a retreat. Romanos was then captured by the Seljuks, and instead of executing him—the typical fate for one considered a dangerous foe—to humiliate him, Alp Arslan spared the emperor’s life and set him free, after he agreed to concede territory and pay a hefty ransom.

The military defeat might not have been disastrous, but problems within the empire exacerbated the loss. Romanos was deposed and killed by his own aristocracy, and for the next twenty years, the Byzantine rulers struggled to restore order to their empire. One of Romanos’s successors, Alexios I, called on the popes for assistance against the Seljuks. He was expecting a mercenary force, but instead Pope Urban II framed the conflict between Byzantine and Seljuk as a fight between religions, culminating in the crusading movement.