The Byzantine Empire and the Republic of Venice conclude a treaty. Apart from agreeing on a ten year truce, the Venetians are alloted a commercial quarter in Constantinople and are restored to earlier privileges.

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 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'.