Amphion and Zethus

Zethus or Amphion had a daughter who was called Neis (Νηίς), the Neitian gate at Thebes was believed to have derived its name from her.

[3] Amphion and Zethus were the sons of Antiope, who fled in shame to Sicyon after Zeus raped her, and married King Epopeus there.

After they were convinced that she was their mother, they killed Dirce by tying her to the horns of a bull, gathered an army, and conquered Thebes, becoming its joint rulers.

[5] Amphion became a great singer and musician after his lover Hermes taught him to play and gave him a golden lyre.

[7] In the Odyssey, however, Zethus's wife is called Aëdon, a daughter of Pandareus in book 19, who killed her son Itylus in a fit of madness and became a nightingale.

[12][13] However in the dark of the night, Aëdon by mistake killed Itylus, and in her mourning she was transformed into a nightingale by her father-in-law Zeus[14][15] when Zethus began to chase her down in rage for murdering their son.

[16] Alternatively, Aëdon was afraid that her husband (here, mistakenly perhaps, spelled Zetes) was having an affair with a nymph, and that Itylus was assisting his father in his infidelity, so she killed him.

Amphion and Zethus
Dirce's punishment - Roman wall painting in House of the Vettii, Pompeii.
Woodcut illustration of Niobe, Amphion and their dead sons, printed by Johannes Zainer (ca. 1474)