Hera is the sister and wife of Zeus (the Greeks did not approve of this arrangement for real people but they thought it was okay for gods). (Compare the Egyptian gods, who also marry their sisters). So Hera is also the daughter of Earth (Rhea) and Time (Chronos).
Hera is usually thought of as responsible for marriage and the family, and Greek men thought of her as mean and selfish and generally unpleasant to be around. She's always getting mad at Zeus about something. But people did sacrifice to her, especially at a wedding. Hera is the mother of Hephaistos, the god of volcanoes and blacksmithing. That's appropriate, because she is an Earth goddess and volcanoes are born out of the earth. She's also the mother of Hebe, the goddess of youth, and Ares, the god of war (maybe because she is associated with agons). Different Greek story-tellers disagreed about whether Hera's husband Zeus was the father of these children, or maybe Hera just made them on her own, with no father.
Taken from: www.britannica.com
Hera is usually thought of as responsible for marriage and the family, and Greek men thought of her as mean and selfish and generally unpleasant to be around. She's always getting mad at Zeus about something. But people did sacrifice to her, especially at a wedding. Hera is the mother of Hephaistos, the god of volcanoes and blacksmithing. That's appropriate, because she is an Earth goddess and volcanoes are born out of the earth. She's also the mother of Hebe, the goddess of youth, and Ares, the god of war (maybe because she is associated with agons). Different Greek story-tellers disagreed about whether Hera's husband Zeus was the father of these children, or maybe Hera just made them on her own, with no father.
Taken from: www.britannica.com