Hyginus, Fabula 129
Hyginus, Fabula 129 = Oineus, trans. Mary Grant
When Liber had come as a guest to Oeneus, son of Parthaon, he fell in love with Althaea, daughter of Thestius and wife of Oeneus. When Oeneus realized this, he voluntarily left the city and pretended to be performing sacred rites. But Liber lay with Althaea, who became mother of Dejanira. To Oeneus, because of his generous hospitality, he gave the vine as a gift, and showed him how to plant it, and decreed that its fruit should be called oinos from the name of his host.