Semele.

Semele (Σεμέλη) (Semélē), or Thyone (Θυώνη) (Thyṓnē) was a princess of Thebes in Greek mythology.

Her parents were Cadmus (Κάδμος) (Kádmos) and Harmonia. Autonoё (Αὐτονόη), Agave, Ino, and Polydorus (Πολύδωρος) were Semele's siblings.

She was the mother of the god Dionysus (Διόνυσος) (Diónysos).

Semele met other gods and goddesses, such as: Zeus and Hera (Ἥρα) (Hḗrā).

Also, she was saved from Hades (ᾍδης) (Háidēs) by her son Dionysus.

Pentheus.

Pentheus (Πενθεύς) (Pentheús) was a king of Thebes in Greek myths and legends. Echion (Ἐχῑ́ων) was his father and Agave (Ἀγαύη) (Agaúē) was his mother. Epirus (Ἤπειρος) (Ḗpeiros) was Pentheus' sister. Also, the character had a son named Menoeceus (Μενοικεύς) (Menoikeús).

He was killed by his mother Agave and her sisters. It was tragedy.