The language of the Byzantine Empire was Medieval Greek, also known as Byzantine Greek. The period of use of Byzantine Greek is historically thought to be between 600 A.D. (beginning of the Middle Ages) and 1453 A.D. with the Ottoman conquest of the city of Constantinople. From the 7th century forward, Greek was the only language of government used in the Byzantine Empire. Byzantinology is the study of the history, culture and language of the Byzantine Empire and includes studying Medieval Greek. Baby Name World maintains a category of Greek baby names and name meanings to aide your search for an authentic Byzantine period name.