The siege of Bari was initiated by the Italo-Normans as part of their ongoing conflicts with the Byzantine Empire, which sought to maintain its influence in Italy. The city of Bari, located on the Adriatic Sea, was a vital stronghold for the Byzantines and offered strategic advantages in terms of trade and military positioning. The Normans were aiming to expand their territories and assert their power in southern Italy. Led by notable figures such as Robert Guiscard, the Normans effectively utilized siege warfare tactics to encircle and apply pressure on the Byzantine defenders. The conflict was characterized by a series of confrontations, during which the defenders, motivated by their loyalty to the Byzantine Empire, fought fiercely to hold the city.As the siege progressed, the Normans employed various siege engines and strategies to breach the city walls, while the Byzantines resorted to desperate measures to secure supplies and reinforce their garrison. The backdrop of the siege must also be considered, as the Normans were increasingly consolidating power with the support of local nobility and drawing on their experiences from earlier engagements. The siege, enduring nearly three years, would ultimately change the geopolitical landscape of southern Italy, leading to further Norman incursions and the eventual fall of Byzantine control in the region.