Byzantine-Norman War

Timeline

1. 1082Thessaly · GreeceAfter the defeat at Dyrrhachium, Norman forces continued south, capturing Larissa and other major Thessalian towns, their spearpoint aimed toward Constantinople, shaking the Byzantine court.
2. 1082–1083Adriatic Sea · Adriatic SeaAlexios signed a commercial alliance treaty with Venice, trading commercial privileges for Venetian fleet raids against Norman supply lines, cutting the maritime link between mainland Italy and the Balkan occupation forces.
3. 1083–1084Macedonia and Epirus · BalkansByzantine forces launched counterattacks and sieges in various places; the Norman occupation army, cut off from supplies and reduced by disease, fell into difficulties, and Guiscard was forced to contract his front and seek negotiations with the Byzantines.
4. 1084–1085Balkan Peninsula and Sicily · MediterraneanThe Balkan front fell into stalemate; Guiscard diverted some forces to campaigns in Sicily and North Africa, and the Byzantines gradually recovered some lost territory, though the Normans maintained pressure at Dyrrhachium and elsewhere.