I want to know the answer to the following question:
Who mentions a Daurentius (577–579) that slew an Avar envoy of Khagan Bayan I?
All the background I'm provided with is that "Menander Protector mentions a Daurentius (577–579) that slew an Avar envoy of Khagan Bayan I.". Is that enough to answer the question?
Answer: yes