In Greek mythology, Thoas was a son of the god Dionysus and Ariadne, the daughter of Cretan king Minos. Some, however, consider him to be Theseus’s son, together with his brother Oenopion. Rhadamanthus, Ariadne's uncle, bequeathed Thoas the island of Lemnos, over which he reigned until his daughter Hypsipyle, unable to kill her own father to avenge the offenses against the Lemnian women, tied him secretly in an oarless boat and sent him adrift into the Aegean Sea. He was carried to the island of Oinoie, where he consorted with the nymph of the island, also called Oinoie, and had by her a son Sicinus, who later had the island renamed after himself. Thoas eventually arrived at Tauris, in the Crimea, where he was made king and where Artemis installed Agamemnon's daughter Iphigeneia as her temple's priestess.