Third Battle of Thessaloniki

In 1040, Peter Delyan led an uprising against the Byzantines and was proclaimed tsar of Bulgaria. During his uprising, the Bulgarians in the territory of present-day Albania also rose in revolt under Tihomir. The rebels from the two uprisings met and united. They placed Peter Delyan in command and killed Tihomir. After regrouping their forces, they marched east towards Thessaloniki, where the Byzantine emperor Michael IV the Paphlagonian and his family were staying.

The rebels won the battle. The imperial family managed to escape. Following this victory, Dyrrachium and Thessaly were also conquered.