The ruins at Isar, Marvinci are believed to be the ancient Macedonian town of Idomenae, which first appeared in documentation in the 5th century BC during the Peloponnesian War.
[7] It is described by Ptolemy as being within the province of Emathia,[2] and was near Doberus, next to which it is named by Hierocles among the towns of Consular Macedonia under the Byzantine Empire.
[3] Before becoming a part of the province of Emathia the city was the administrative center of the Parorbelia region of ancient Macedonia.
During the rule of Philip II the region was defunct and incorporated together with Idomenae into Bottiaea which in turn was renamed to Emathia.
[citation needed] It is now the archaeological site of Isar, located near the village of Marvinci, in the Valandovo municipality of modern-day North Macedonia.