Battle of Dyrrhachium (1081) - Aftermath

Aftermath

"Alexius was undoubtedly a good tactician, but he was badly let down by the indisciplined rush to pursue the beaten enemy wings, a cardinal sin in the Byzantine tactical manuals. He failed to take adequate account of the effectiveness of the Norman heavy cavalry charge, which punched through his lines with little resistance."

The battle was a heavy defeat for Alexius. Historian Jonathan Harris states that the defeat was "every bit as severe as that at Manzikert." He lost about 5,000 of his men, including most of the Varangians. Norman losses are unknown, but John Haldon claims they are substantial as both wings broke and fled. Historian Robert Holmes states: "The new knightly tactic of charging with the lance couched – tucked firmly under the arm to unite the impact of man and horse – proved a battle-winner."

George Palaeologus had not been able to re-enter the city after the battle and left with the main force. The defense of the citadel was left to the Venetians, while the city itself was left to an Albanian, Komiskortes.

In February 1082, Dyrrhachium fell after a Venetian or Amalfian citizen opened the gates to the Normans. The Norman army proceeded to take most of northern Greece without facing much resistance. While Guiscard was in Kastoria, messengers arrived from Italy, bearing news that Apulia, Calabria, and Campania were in revolt. He also learned that the Holy Roman Emperor, Henry IV, was at the gates of Rome and besieging Pope Gregory VII, a Norman ally. Alexius had negotiated with Henry and given him 360,000 gold pieces in return for an alliance. Henry responded by invading Italy and attacking the Pope. Guiscard rushed to Italy, leaving Bohemond in command of the army in Greece.

Alexius, desperate for money, ordered the confiscation of all the church's treasure. With this money, Alexius mustered an army near Thessalonica and went to fight Bohemond. However, Bohemond defeated Alexius in two battles: one near Arta and the other near Ioannina. This left Bohemond in control of Macedonia and nearly all of Thessaly. Bohemond advanced with his army against the city of Larissa. Meanwhile, Alexius had mustered a new army and with 7,000 Seljuk Turks sent by the Sultan, he advanced on the Normans at Larissa and defeated them. The demoralised and unpaid Norman army returned to the coast and sailed back to Italy. Meanwhile, Alexius granted the Venetians a commercial colony in Constantinople, as well as exemption from trading duties in return for their renewed aid. They responded by recapturing Dyrrhachium and Corfu and returning them to the Byzantine Empire. These victories returned the Empire to its previous status quo and marked the beginning of the Komnenian restoration.