The gods of ancient Rome were thought to possess a wide range of responsibilities towards their mortal worshippers. Soldiers might call upon Mars to protect them whilst on campaign, artisans laboured under the guidance of Minerva, and farmers looked to Ceres to ensure a bounteous crop.1 Some gods possessed many roles: Apollo was connected to poets, oracles and medicine, but not always alone: other gods also possessed oracular shrines, such as Zeus at Dodona, and Apollo also shared his medical knowledge with his son, Aesculapius.2 The Dioscuri also participated in this network of divine responsibilities. They were associated with the followers of their own athletic pursuits: horsemanship and boxing, as well as ensuring the safety of sailors and, owing to their own bond, serving as examples of fraternal piety.