Discovery by Historia Krajës. Translation Petrit Latifi
In the 12th century, the most famous historian of Byzantium, Constantine Manasses (1143-1180), identifying ancient countries and peoples with those of the Middle Ages, among other things identifies the Albanians with the Illyrians.

“… Illyrians, the Albanitai. Illyrians…”
Reference
Illyrians or Albanians – Ίλλυριοί οί ‘Αλβανίται – Constantini Manassis Breviarium, historiae metricum, volume 29.