Accounts in ancient sources create much confusion about the original location of the Ardiaei. Up to the 4th century BC, the Ardiaei were not a coastal people, as they were described by later Roman historiography from the mid-3rd century BC onwards. Their inland location in older times can be inferred by the cause of war between them and the Autariatae – a long-running conflict over the possession of salt sources near their common border. If they had inhabited the Adriatic coastal area, they would not have had such a pronounced need to undertake a dangerous war because of the mountain salt springs. The arrival of the Ardiaei on the coast must have occurred at some time after the mid-4th century BC, as the
Periplus of Pseudo-Skylax dating back to that time does not mention this Illyrian tribe at all. At that time the lower course of the
Naro river was inhabited by the
Manioi, while the middle course was likely inhabited by the Ardiaei. The territory of the Ardiaei and Autariatae must have met somewhere along the upper Naro valley near the 'Great Lake', which was attested in the
Periplus and has been identified with
Hutovo Blato. The Autariatae most likely inhabited the other side of the lake. During the 2nd century BC the Manioi disappeared from historical sources, being replaced in some of their former regions by the Ardiaei and Daorsi, while some of the earlier Autariatan territories were inhabited by the
Narensii. Their tribal name indicates that Narensii certainly inhabited some of the areas along the Naron river, and that they probably appeared in historical sources after the disintegration of the coalition that was dominated by the Autariatae. In the 3rd century BC, the Ardiaei attained political importance and conquered territories from the Autariatae until they acquired control of the entire Adriatic coast, from the region of the Daorsi at the mouth of the Naro river down to
Labeatae around
Lake Scodra. It is possible that at that time their capital was in Rhizon in present-day Montenegro. In Roman times the Ardiaei were attested in the area of southern Illyria that was centered around the
Bay of Kotor, with Rhizon as a capital city, expanding from the
Naro river in present-day Bosnia and Herzegovina and Croatia, along the Adriatic coast southwards to
Scodra (another capital of the Illyrian kingdom) in present-day Albania, as well as to the broad region of
Lissus. == History ==