This article deals with historiographical situation around the theme of the Early-Byzantine military nobility. The authors reveal urgency to study military nobility of the last decades of Early Byzantine Empire Epoch (564-641) and define method, subject, object and main problems of the study. The necessity and possibility to investigate question "Early-Bizantine Military Nobility from the End of 60s of the VI Century to the Beginning of 40s of VII Century" is proved.

Key words: Byzantine Empire, military nobility, problems, historiography, source study, methods, interdisciplinary approach.