Rattawy, or Raet, is the feminine form of the name Ra, the Egyptian sun-god. Strangely, she has nothing to do with the sun-god’s cult, but seems to have led an independent existence from the 19th Dynasty onward. While some see her as simply “Mrs. Ra”, the only records we have of her tell a very different story.
Since the goddess Rosmerta often (not always) appears with the Roman god Mercury in both inscriptions and art, it is generally assumed that she is his consort, and the images that show her with his attributes indicate that he was the more powerful partner. There is a strong case to be made, however, for reading it the other way around.