Megara

Megara is the daughter of Creon, the king of Thebes.  After Heracles defeats the Minyans, she is given to him to be his bride.  Later, a fit of madness is sent upon Heracles by the jealous Hera.  In an uncontrollable rage, Heracles kills  their children together.  As punishment for this act, Heracles had to perform the twelve labors.

Source(s):

  1. ApollodorusBibliotece.