The Ilienses (or Iolaes, later known as Diagesbes) were an ancient Nuragic people who lived during the Bronze and Iron Ages in central-southern Sardinia, as well as one of the three major groups among which the ancient Sardinians considered themselves divided (along with the Corsi and the Balares). After the Sicilian Wars began with the Punic invasion in the sixth century BC, part of them retreated to the mountainous interior of the island, from which they opposed the foreign rule for centuries. According to the legend recorded by Greek historians, the etymology of their name (Iolaes) is to be traced back to Iolaus, the hero who led the Thespiades, sons of Heracles and the daughters of Thespius (king of the Boeotian city-state of Thespiae) in Sardinia, where he founded a colony. Another myth tell that the old inhabitants of Ilium, better known as Troy, after the fall of the city established themselves in this part of Sardinia (where they mixed with the Iolaes), hence the name of Ilienses. Pomponius Mela considered the Ilienses as the oldest people of the island. A fourth component part of the population was the army of Iolaus, consisting of Thespians and men from Attica, which put in at Sardinia and founded Olbia [...] Be this as it may, there are still today places in Sardinia called Iolaia, and Iolaus is worshipped by the inhabitants.[...] When Troy was taken, among those Trojans who fled were those who escaped with Aeneas. A part of them, carried from their course by winds, reached Sardinia and intermarried with the Greeks already settled there (Iolaes). But the non-Greek element (Balares ?) were prevented from coming to blows with the Greeks and Trojans, for the two enemies were evenly matched in all warlike equipment, while the river Thorsus (Tirso), flowing between their territories, made both equally afraid to cross it.. Despite the myth, they were most likely a tribal group indigenous to the island. According to the archaeologist Giovanni Ugas, the Ilienses were the most important population of Nuragic Sardinia and were connected with the Sherden, one of the Sea Peoples widely cited in Ancient Egyptian sources.