a Roman ambassador, who was killed with his three colleagues by the Fidenates, in B. C. 438, upon the instigation of Lar Tolumnius, king of the Vcientes. Statues of all four were placed on the Rostra. Cicero calls him Tullus Cluilius. (Liv. 4.17; Cic. Phil. 9.2; Plin. Nat. 34.6. s. 11.)