Hera is the goddess of wifehood in greek mythology. She was married to her brother Zeus (god of the sky) who constantly betrayed their marriage to fool around with mortals or sometimes other gods. Hera is known for her jealousy and rage. Many times she even cursed the women that Zeus had fooled around with.
Connection to the books
In the last apprentice series, Zenobia (also known as Mam, Tom's mother) a young enchantress started to see Zeus in secret. When Hera found out about the two she killed all of Zenobia's children. This caused Zenobia to be a grotesque creature that is known later as a Lamia witch. Hera had created the first Lamia witch!