Short answers, pulled from the story.
Hera is the goddess of marriage, women, and family in ancient Greek religion, and the protector of women during childbirth. She is the queen of the twelve Olympians and of Mount Olympus, the sister and wife of Zeus, and the daughter of the Titans Cronus and Rhea.
The name Hera has no clear etymology, and several mutually exclusive meanings have been proposed, including Mistress as a feminine to Heros, and young cow or heifer. It is attested in Mycenaean Greek as e-ra in the Linear B syllabary on tablets found at Pylos and Thebes.
Hera was the stepmother and enemy of Heracles, whose name means Glory of Hera. She delayed his birth so Eurystheus would rule instead, sent serpents to kill him as an infant, drove him mad, and tried to make almost all of his twelve labours harder.
Hera's sacred animals include the cow, the cuckoo, and the peacock. Her Homeric epithet Boôpis means cow-eyed, and she is sometimes shown holding a pomegranate as an emblem of immortality.
Hera, Aphrodite, and Athena each claimed a golden apple inscribed To the fairest, and Paris was chosen to judge. Hera offered him political power and control of all of Asia, but Paris chose Aphrodite's offer of Helen, and Hera then sided with the Greeks once the war began.
The greatest and earliest free-standing temple to Hera was the Heraion of Samos, where she may have received the first enclosed roofed Greek temple sanctuary about 800 BCE. She was also worshipped as Argive Hera between Argos and Mycenae, at Olympia, and at two Doric temples in Paestum in Magna Graecia.
At the spring of Kanathos near Nauplia, Hera renewed her virginity annually in secret rites called arrheton. She was worshipped across three phases as the Girl, Pais, the Adult Woman, Teleia, and the Widowed or Divorced, Chērē, notably at a triple shrine in Stymphalia.