Menander Protector mentions a <answer>Daurentius</answer> (577–579) that slew an Avar envoy of Khagan Bayan I. The Avars asked the Slavs to accept the suzerainty of the Avars, he however declined and is reported as saying: "Others do not conquer our land, we conquer theirs – so it shall always be for us".
Who slew an envoy of Khagan Bayan I?
Daurentius