Arran (
Middle Persian form), also known as
Aran,
Ardhan (in
Parthian),
Al-Ran (in
Arabic),
Aghvank and
Alvank (in
Armenian), (-
Ran-i ) or
Caucasian Albania (in
Latin), was a geographical name used in
ancient and
medieval times to signify the territory which lies within the
triangle of land, lowland in the east and mountainous in the west, formed by the junction of
Kura and
Aras rivers, including the highland and lowland
Karabakh (
Artsakh),
Mil plain and parts of the
Mughan plain, and in the pre-Islamic times, corresponded roughly to the territory of modern-day
Republic of Azerbaijan. The term is the
Middle Persian equivalent to the
Greco-Roman Albania. It was known as
Aghvania,
Alvan-k in
Armenian, and
Al-ran (Arabized form of
Arran) in
Arabic. The native name for the country is unknown.