For 10 points, name this husband of Harmonia and brother to Europa, the founder of Thebes.
Hera convinced this man's daughter to demand the disguised Zeus to reveal his true identity. Zeus thunderbolted Iasion after he lured Demeter away and violated her at an event which this father of Semele attended. A group of soldiers swore allegiance to this guy even though he threw a stone in their midst and caused them to attack one another. At his wedding, Aphrodite presented his wife with a necklace that bestowed great beauty to its holder. He's not Jason, but this king served eight years of bondage with Ares after he killed a dragon and sowed its teeth into the earth, a task he took up after Zeus morphed into an eagle and abducted his sister. For 10 points, name this husband of Harmonia and brother to Europa, the founder of Thebes.
Hera convinced this man's daughter to demand the disguised Zeus to reveal his true identity.
Cadmus