Illustration from a medieval Spanish language astrology textbook attributed to Alfonso X the Wise. The image is meant to depict the effect various other stars or constellations have in concert with Gemini.
De temporibus – a treatise on magic or on astrological images: Constellation of Gemini – “Tratado de astrología y magia” de Alfonso X El Sabio (Rome BAV Reg. lat. 1283 – fol-2v S-133)