EN
The article is devoted to the question of the death of Perbundus, who headed the Slavic tribe of Rynchiniens. On the basis of analysis of the testimony of the second part of 'Miracula sancti Demetri', the author comes to a conclusion that Perbundus was executed due to the order of the emperor Constantine IV because he ceased to be guarantee of peaceful relations between Slavic tribes and inhabitants of Thessalonike. His death did not happened before the attack of Slavs on the Thessalonike (as was accepted by the scientists so far) but was its consequence.