Although a man "marked out for a career of promotion", according to Tacitus, he was tried before the Senate in the year 62. The Senate found him guilty for conspiring with Vincius Rufinus, Antonius Primus, and others, to impose on his aged and wealthy relative, Domitius Balbus, a forged will. Fabianus was removed from the senatorian order by the Lex Cornelia Testamentaria or De Falsis.
- This article incorporates text from a publication now in the public domain: Donne, William Bodham (1870). "Fabianus, Valerius". In Smith, William. Dictionary of Greek and Roman Biography and Mythology. 2. p. 132.
- Tac. Ann. xiv. 40; comp. Instit. iv. 18. § 7; Paulus, Recept. Sententiarum v. tit. 25.