The Byzantine defeat at Brindisi ended Emperor Manuel I Komnenos's campaign to reclaim southern Italy from Norman Sicily.
Key Facts
- Year
- 1156
- Byzantine Emperor
- Manuel I Komnenos
- Norman King
- William I ('the Bad') of Sicily
- Key city captured by Byzantines
- Bari
- Negotiator post-defeat
- Alexios Axouch, at Ancona
Location
Cause → Event → Consequence
Following the death of Roger II of Sicily and the troubled succession of William I, Emperor Manuel I Komnenos saw an opportunity to reclaim the Byzantine provinces of Apulia and Calabria in southern Italy, launching a major military campaign that succeeded in seizing several cities including Bari.
The Byzantine siege of Brindisi ultimately failed, and the Norman Sicilian forces inflicted a decisive defeat on the Byzantine army, halting their advance. This battle, fought in May 1156, marked the climax and end of the Byzantine reconquest effort in southern Italy.
After the defeat, Byzantine diplomat Alexios Axouch negotiated a treaty with William I at Ancona, allowing Manuel I to exit the war with some diplomatic honor. Norman Sicily was consolidated under William, who also conducted large-scale raids on the Aegean coasts of Greece, cementing Norman dominance in the region.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Manuel I Komnenos (overall commander).
Side B
1 belligerent
William I 'the Bad'.