6. N.FabiusVibulanus, Q. F. M. N., second son of No. 4, was consul B. C. 421 with T. Quintius Capitolinus Barbatus. He carried on war against the Aequians, whom he put to flight without any difficulty : he was refused a triumph, but received the honour of an ovation. It was in this year that the consuls proposed that in addition to the two city quaestors, two others should be appointed to attend upon the consuls in time of war. This proposal gave rise to great contests, as the tribunes
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insisted that some of the quaestors should be chosen from the plebeians. In B. C. 415 Fabius was one of the consular tribunes, and again in B. C. 407. (Liv. 4.43, 49, 58; Diod. 13.24, 14.3.)