CICERO, in the De Oratore, mentions that when Bestia was being prosecuted by C. Memmius, Scaurus attended the trial as advocatus reo Bestiae, and became the target of a jibe from Memmius.' Scaurus, it is clear from the context,2 is meant to be M. Aemilius Scaurus, consul 115, censor 109, Princeps Senatus. It is usually and reasonably assumed that the reference is to the prosecution of L. Calpurnius Bestia (cos. 111) in the quaestio Mamilia of 109.3 Bestia's trial and conviction in this court are recorded by Cicero in Brutus 127-128, though without mention of Scaurus or of C. Memmius as accusator.