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History: According to Wikipedia, the city isn’t mentioned by any ancient author and its name is only known through coins and inscriptions. The name is mentioned for the first time in history on the Stadiasmus Patarensis, a Roman milestone excavated at Patara. The inscription on the milestone was made during the reign of Claudius and is dated to 45/46 AD. There is no evidence for the existence of the city during the Hellenistic period. Under Roman rule the city was part of the Lycian League.

The only coins excavated at the site bear the image of Gordian III, who granted the city the right to mint coins. An inscription dated to 278/279 AD states that the city was designated as a Roman colony during the rule of Terentius Marcianus, the governor of the Roman province of Lycia-Pamphylia at that time. Under the Byzantine Empire the city became part of Pamphylia.

Discovery: Trebenna was discovered by Karol Lanckoroński. In 1882 he joined a scientific expedition to Lycia with the goal of describing many sites which were either completely unknown or poorly researched at the time. He provided a brief description of the city in a publication of the expedition’s discoveries in 1892.

Layout: The ruins of the city lie on a small hill and are surrounded by an early Byzantine wall. Within the walled area many inscriptions and sarcophagi were found. It contains the ruins of Roman baths and an early Byzantine basilica. The Roman baths are notable for their relatively large size and high quality in a smaller city such as Trebenna. With a size of 302 square meters (423 square meters including the walls) they are comparable to the baths in the most important Lycian cities. An acropolis was added to the city in the middle Byzantine period. A middle Byzantine church is located near it.