Although the ceremony in 971 had been intended as a symbolic termination of the Bulgarian empire, the Byzantines were unable to assert their control over the western provinces of Bulgaria. These remained under the rule of their own governors, and especially of a noble family led by four brothers called the Kometopouloi (i.e., "the sons of the Count"), named David, Moses, Aron, and Samuel. The movement was regarded as a "revolt" by the Byzantine emperor, but it apparently saw itself as a sort of regency for the captive Boris II. As they began to raid neighboring territories under Byzantine rule, the Byzantine government resorted to a stratagem intended to compromise the leadership of this "revolt". This involved allowing Boris II and his brother Roman to escape from their honorary captivity at the Byzantine court, in the hope that their arrival in Bulgaria would cause a division between the Kometopouloi and other Bulgarian leaders. As Boris II and Roman entered the region under Bulgarian control in 977, Boris II dismounted and went ahead of his brother. Mistaken for a Byzantine notable due to his attire, Boris was shot in the chest by a deaf and mute border patrol. Roman managed to identify himself to the other guards and was duly accepted as emperor.