The Dioscuri are twin brothers from Greek mythology, known as Castor and Pollux. They are often associated with horsemanship and are considered protectors of sailors. The twins are the sons of Leda and are sometimes depicted as having different parentage, with Castor being mortal and Pollux being divine. In art and literature, the Dioscuri symbolize brotherhood and loyalty. They are frequently represented in ancient sculptures and coins, and their legacy continues in modern culture, such as in the constellation Gemini, which is named after them. Their stories highlight themes of bravery and companionship.