A daughter of Cronus and Rhea, Hera is the goddess of childbirth. The third and final wife of Zeus, she bore to him Ares, Hebe and Hephaestus.
Hera is primarily known for her jealousy of Zeus' extra-marital affairs. Most famous among these is her persecution of Heracles. First, she attempted to kill the baby Heracles with two serpents. Later, she sent a madness upon him, which caused him to kill his wife Megara and children. She also led to Heracles fighting with and killing Hippolyte, queen of the Amazons.
On the other hand, Hera played a major role helping Jason on his quest to gain the Golden Fleece. She knew that by helping him, Jason would kill Pelias, a king whom despised very much.
In the Trojan War, Hera fought for the Greeks. She had been one of the three goddesses vying for the golden apple, ad carried a grudge against Paris and the Trojans. In the tenth year of the war, she prevents Achilles and Agamemnon from engaging in combat by sending Athena down to calm Achilles.
The Romans identified Hera with their goddess Juno, who is the wife of Jupiter.
In the Aeneid, Juno is the arch enemy of Aeneas. Attempting to defy fate, she causes a storm to wreck him on the shore of Africa, and encounter the queen Dido. In a twist of fate, this eventually leads to the downfall of her favorite city Carthage.
Apollonius Rhodius. Argonautica.