Demetrios son of Artemon, together with Aderitos son of Thersandros and Thales son of Herakleides, is a man mentioned in a list of theoroi (I.Samothrace Theoroi 6, 23) who paid an official visit to the shrine of the Great Gods in Samothrace, during the same unknown year. The eponymous basileus of this year in Samothrace is [—]x son of Athana[—], not attested elsewhere.

The origin of this group of three theoroi was correctly restored as Samos by L. Robert (Robert 1935, pp. 487-488). The other delegations of theoroi came from Cos and Teos. All these men were rewarded with proxeny.

To date I.Samothrace Theoroi 6 one has to rely mainly on palaeography: the shape especially of deltas, ni, omicron, and pi suggests that the text was inscribed in the mid-to-late Hellenistic period.

For a man coming from a Ionian city, Demetrios son of Artemon is obviously a rather trivial combination of names. Nonetheless, Robert already wondered whether it could be the same Demetrios son of Artem[—] who took part in an epidosis in Samos (IG XII 6, 172 B l. 11). This can hardly be case, since the epidosis inscription is dated to the mid 3rd c. BC, a bit too early for the chronology of I.Samothrace Theoroi 6. On the other hand, a better candidate might be another Demetrios son of Artemon from Samos, who at the beginning of the 2nd c. won a javelin competition in the neoi age group (IG XII 6, 179 l. 6). Curiously enough, the gymnasiarch who supervised these competitions (l. 1) was named Thales son of Euelthon, natural son of Herak[leides]. It is therefore possible that the two, although of different ages, were part of the same embassy to Samothrace at a time after the competitions.