Il Guercino, Aurora (detail from the ceiling of the Casino dell'Aurora), 1621, fresco, Villa Boncompagni Ludovisi, Rome
Eos (Greek) or Aurora (Roman) is the goddess of the dawn. Each morning she drives her chariot across the sky, scattering rose petals, and announcing the day. She ushers in the sun chariot.
While not seen here, she is often portrayed with wings and a halo.