This is the greek goddess Iris. Iris is the personification of the rainbow and messenger of the gods. Iris links the gods to humanity. She travels with the speed of wind from one end of the world to the other, and into the depths of the sea and the underworld. Iris is the daughter of Thaumas and the cloud nymph Electra. Her sisters are the Harpies. Her brother is Hydaspes. Iris carries a caduceus or winged staff. She carries an ewer of water from the River Styx, with which she puts to sleep all who perjure themselves. She is represented as supplying the clouds with the water needed to deluge the world, consistent with her identification with the rainbow. Iris is married to Zephyrus, who is the god of the west wind. Their son is Pothos. Iris was said to have golden wings but i love rainbow instead.