Byzantine–Norman wars: Robert Guiscard led an invasion of the Byzantine Empire, capturing Dyrrhachium in present-day Albania.

The Byzantine–Norman wars were a series of military conflicts between the Normans and the Byzantine Empire fought from c. 1040 to 1186 involving the Norman-led Kingdom of Sicily in the west, and the Principality of Antioch in the Levant. The last of the Norman invasions, though having incurred disaster upon the Romans by sacking Thessalonica in 1185, was eventually driven out and vanquished by 1186.

Robert Guiscard, also referred to as Robert de Hauteville, was a Norman adventurer remembered for his conquest of southern Italy and Sicily in the 11th century.

The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived the events that caused the fall of the Western Roman Empire in the 5th century AD, it endured until the fall of Constantinople to the Ottoman Empire in 1453. The term 'Byzantine Empire' was coined only after its demise; its citizens used the term 'Roman Empire' and called themselves 'Romans'.

The Battle of Dyrrhachium took place on October 18, 1081 between the Byzantine Empire, led by the Emperor Alexios I Komnenos, and the Normans of southern Italy under Robert Guiscard, Duke of Apulia and Calabria. The battle was fought outside the city of Dyrrhachium, the major Byzantine stronghold in the western Balkans, and ended in a Norman victory.

Durrës is the second most populous city of the Republic of Albania and seat of Durrës County and Durrës Municipality. It is one of Albania's oldest continuously inhabited cities, with roughly 2,500 years of recorded history. It is located on a flat plain along the Albanian Adriatic Sea Coast between the mouths of the Erzen and Ishëm at the southeastern corner of the Adriatic Sea. Durrës' climate is profoundly influenced by a seasonal Mediterranean climate.