Career
In the heated talks the emperor represented himself as intent on keeping the peace in Bulgaria and upbraided the Bulgarians for their anarchy, and for deposing their former ruler Sabin, who lived as a refugee at the imperial court. At this point Constantine V suddenly invaded Bulgaria and managed to penetrate across the mountains into the core area of the Bulgarian state, setting afire some settlements around the Bulgarian capital Pliska. The monarch fled in the direction of Varna, but was murdered by his servants.