In Greek mythology, Thoas was a son of the god Dionysus and Ariadne, the daughter of the Cretan king Minos. He was the king of Lemnos when the Lemnian women decided to kill all the men on the island. He was the only man to survive the massacre, having been saved by his daughter Hypsipyle. He is sometimes identified with the Thoas who was the king of the Taurians when Iphigenia was taken to the land of the Taurians and became a priestess of Artemis there.

In Greek mythology, Ariadne was a Cretan princess and the daughter of King Minos of Crete. There are different variations of Ariadne's myth, but she is known for helping Theseus escape the Minotaur and being abandoned by him on the island of Naxos. There, Dionysus saw Ariadne sleeping, fell in love with her, and later married her. Many versions of the myth recount Dionysus throwing Ariadne's jeweled crown into the sky to create a constellation, the Corona Borealis.