The Three Graces was a popular subject recreated in many mediums throughout Ancient Greece and Rome. They were the beautiful daughters of Zeus and Eurynome. The Graces represent Gracefulness, Peace, and Happiness. Aglaia, on the left, was the goddess of Splendor, Euphrosyne, in the middle, was Fesivity, and Thalia, on the right, represents Rejoicing. They were often found in the service of Aphrodite, goddess of Love, bathing her in ambrosial oil and dressing her in silken robes which they had woven. You can learn more about three graces here
Three graces sculpture