First Bulgarian Empire
Further involvement in Byzantine affairs
Bulgarian Khan Tervel receives the annual Byzantine tribute in the Byzantine–Bulgarian treaty of 716
719 Jan 1

Further involvement in Byzantine affairs

İstanbul, Turkey

In 719, Tervel again interfered in the internal affairs of the Byzantine Empire when the deposed emperor Anastasios II asked for his assistance to regain the throne. Tervel provided him with troops and 360,000 gold coins. Anastasios marched to Constantinople, but its population refused to cooperate. In the meantime Leo III sent a letter to Tervel in which he urged him to respect the treaty and to prefer peace to war. Because Anastasios was abandoned by his supporters, the Bulgarian ruler agreed to Leo III's pleas and broke relations with the usurper. He also sent Leo III many of the conspirators who had sought refuge in Pliska.