Ariadne  - Pillar 3, south side 

Ariadne, the daughter of King Minos of Crete, fell in love with Theseus when he went to confront the Minotaur and helped him find the way out of the Labyrinth, giving him a ball of thread, known as the “Thread of Ariadne”. She wanted to follow him to Athens, but at the god’s command he abandoned her while she was sleeping on Naxos, the island of Dionysus. Shortly later, Dionysus arrived on the coast. Charmed by her beauty, he gave her a golden diadem, the work of Hephaestus, which shone so brightly that later it became a constellation (the Corona Borealis). He married her and took her with him to Olympus.   

Here Ariadne is shown beside Dionysus, crowned with his sacred plant, the ivy, and wearing a belt of his vegetal symbol, the vine branch.