3. M.Cornutus, probably a son of No. 2, was praetor urbanus in B. C. 43, and, during the absence of the consuls Hirtius and Pansa, he supplied their place at Rome : after the death of the consuls, he was ordered by the senate to superintend their funeral. When Octavianus shortly after demanded the consulship for himself, and advanced towards Rome upon the senate refusing to grant it, the three legions stationed in the city went over to Octavianus, and M. Cornutus, who had the command of one of them, put an end to his life, (Cic. Fam. 10.12, 16, Philip. 14.14; V. Max. 5.2.10; Appian, App. BC 3.92.)