What is the only genuine heroic epic of the Byzantines? 

The only genuine Byzantine heroic epic is known as the “Digenis Akritas” or “Digenis Akritis.” This epic poem is an important work of medieval Greek literature and is thought to be the only surviving epic narrative from the Byzantine empire.”Digenis Akritas” narrates the account of a heroic man named

Digenis, is portrayed as a border guard (akritas) protecting the Byzantine Empire’s frontier territories from invaders, particularly Arab incursions. The poem incorporates aspects of romance, adventure, and combat, recounting Digenis’ exploits and heroism as he faces numerous adversaries.