Rhea is the Titanide personification of earth, for which she is often associated with her mother, Gaia. She is the sister-wife of Cronus, with whom she conceived the six original Olympians: Hestia, Hera, Demeter, Poseidon, Hades, and Zeus. This feat has earned her the title: “Mother of the Gods”.
She rebelled against her husband after witnessing him eating her first five children. When Zeus was born, she hid him away for his own protection so that he could grow into adulthood. Naturally, she did not fight on the side of her husband when Zeus finally rebelled against his father. This makes that she was not imprisoned with her brothers and sisters in Tartarus when the Olympians took over.
Instead, she is still revered to this very day. Her domain is motherhood and childbirth. She makes various appearances in Greek mythology, ranging from the age of Titans to the age of men.