English: Location of Arbanon in 11th century. source: "L'Albanie entre Byzance et Venise" Volume 248 of Collected studies Variorum Collected Studies Volume 248 of Variorum reprint Author Alain Ducellier Edition illustrated, reprint Publisher Variorum Reprints, 1987 ISBN 0860781968, 9780860781967. According to Ducellier the fort of Petrela was the access point to the region known with this name "Par deux fois, Anne Comnene laisse entendre que la place forte de Petrela constitue la voie d'acces principale de cette region ..." On the location of Arbanon see also Studies in late Byzantine history and prosopography Volume 242 of Collected studies Variorum reprints ; CS242 Volume 242 of Variorum reprint Author Donald MacGillivray Nicol Edition illustrated Publisher Variorum Reprints, 1986 ISBN 0860781909, 9780860781905 page. 160 "The geographical location of the mysterious 'Arbanon' has at last no doubt been settled by the researches of Alain Ducellier. In the 11th century at least it was the name given to the mountainous area to the west of Lake Ochrida and the upper valley of the river Shkumbin..."