Medici Riccardi Palace, Gallery of Mirrors (or Room Luca Giordano): “The Allegory of Prudence”, detail of the vault.Frescoes by Luca Giordano, 1682 - 1685.Virtue is placed at the centre of the group with the classic two faces, a golden helmet on her head, the mirror and an arrow with a snake. The combined animal is the deer (symbolizing Prudence), while at the top are Abundance, with cornucopia and caduceus, Grace, Well-being, with the cup and the snake. Below are two sages of antiquity with books and tools.