colleague Tarpeius, to fill two of the vacant positions. This was the only time that patricians were permitted to hold this office, in consequence of which the plebeian tribune Lucius Trebonius Asper succeeded in passing the lex Trebonia, requiring that in the future, votes should continue to be called until the full number of tribunes had been elected, thereby preventing future tribunes from appointing colleagues who might be opposed to the interests of the people. References 5th-century BC Roman consuls