
It will be noticed that, in the stemma above, no line of descent is marked from the first generation registered therein to the following generations. The genealogy of the Emperor Nerva is customarily traced back to the consul of 36 b.c., M. Cocceius Nerva (above, right). This short note will underline the ancient testimony found amongst the Pseudacroniana tracing his descent from the latter's brother, the consummate diplomat (above, left). There are ramifications. Amongst the items of interest will be the light shone upon what Dio and Eutropius (and/or their sources) understood to be Nerva's standing at the time of his accession. Before passing on to Pseudacron's datum, it might be worthwhile pausing on that point, as well as briefly contemplating the factors that actually bore upon the emperor's ancestral training.
According to Dio (67.15.5), the Emperor Nerva was most wellborn (eugenéstatos).Footnote 1 According to Eutropius (Brev. 8.1), he was ‘a man in his private life temperate yet energetic’—and nobilitatis mediae. The latter is a term that will make a cautious reader pause; Merivale, by way of example, preferred to leave the phrase untranslated but clearly believed Eutropius was confirming that Nerva's family ‘took rank among the official nobility’.Footnote 2 Did that formulation modify Eutropius’ endorsement of Nerva's genealogy? Or was Merivale hedging? Nobilitatis mediae is often read as qualifying the lustre of Nerva's lineage (and thus as at loggerheads with Dio's observation).Footnote 3 The notes to the Leiden 1729 edition of Eutropius, provided by H. Glareanus and A. Faber (otherwise, the industrious Madame Anne Lefèvre Dacier), offer mediocris as a gloss and the latter provides parallels (334). The Bohn translation of the Reverend J.S. Watson (London, 1853) offers ‘of noble descent, though not of the very highest rank’; H.W. Bird (Liverpool, 1993) ‘of the middle nobility’. What would such a term as ‘middle nobility’ mean? If this reading is correct, nobilitas was, by the end of the first century a.d. at least, subject to grades.Footnote 4 Some will find no difficulty with that reading. Vogel-Weidemann suggests that ‘a shading of the concept of nobilitas (eine Nuancierung des Nobilitätsbegriffs) eventually even allows Eutropius to recognize Galba as antiquissimae nobilitatis senator and to characterize Nerva, by contrast, merely as vir … nobilitatis mediae’.Footnote 5 In many ways this will not be inconsistent with the traditional (that is to say, Ciceronian) understanding of the term. The achievement of nobilitas brought the members of certain families into a blazing light.Footnote 6 The light shone more brightly in some cases than in others. Cicero could speak, in one case, of summa nobilitas.Footnote 7 Gelzer, on the other hand, had attempted to give nobilitas a more technical force in Ciceronian Latin, and had argued that nobilitas in the age of Pliny and Tacitus (and thus, by implication, of Nerva) was inherited and could be claimed by descendants of the pre-Augustan nobility—and his assertion (though both contested and modified) remains influential—in the sense that the underlying assumption is that one either enjoyed nobilitas or one did not.Footnote 8
Are Dio and Eutropius in conflict? The analogy, though not exact, of ex factione media consul at Sall. Hist. 3.48.8M [= 3.34.8McG], where C. Cotta (cos. 75 b.c.) might be described as ‘a consul from the heart of the factio [sc. the post-Sullan oligarchy]’ may allow the reading (more in line with Dio's observation) that Nerva was ‘of the core of the nobility.’Footnote 9 Thus some would see Dio and Eutropius as on the same page. Librale, elaborating upon the younger Pliny's enthusiasm at Panegyricus 89.1–2, suggests that Nerva invested Trajan with ‘a certain nobility’, citing both authors.Footnote 10 The putative Sallustian analogy does not, of course, in any way settle the reading of nobilitatis mediae in Eutropius, and perhaps a consideration of Nerva's actual standing, rather than the terminology adopted by historians, is apropos. It seems that the Nervae had been granted patrician rank by OctavianFootnote 11 —and this might satisfy Dio's language.Footnote 12 That is to say, such an elevation in itself might merit the claim that Nerva had been wellborn.
How much kudos did the patriciate now carry? In the Flavian period it was worth singing (see Stat. Silv. 5.2.28, carolling Crispinus’ luna patricia, the ivory crescent found on the strapwork of patrician shoes).Footnote 13 The demographic deterioration of patrician numbers (by the end of the Free Republic only fourteen families remained) had required (or so it could be argued) intervention—on four occasions (see n. 11);Footnote 14 patricians had an integral role to play—they were ‘indispensable for the perpetuation of traditional institutions.’Footnote 15 For a patrician himself there was surely an advantage, Salmon presuming that he ‘would enjoy substantial, practical advantages … with incalculable enhancement of his personal prestige (auctoritas)’.Footnote 16 Syme implicitly agreed—to a point, but was ready to qualify the thought with the well-taken observation that, in the Annales, Tacitus nowhere specifies any individual senator as a patrician.Footnote 17 The Nervae, however, had perhaps—as a result of the Octavian adlection—been newly equipped with an impressive lineage (or have had an ancient family claim publicly acknowledged). Trojan descent?Footnote 18 We might legitimately wonder how strong that currency was.Footnote 19 Certainly Claudius attempted to associate the newly adlected in a.d. 48 with prestige: ‘… Caesar [sc. Claudius] enrolled (adscivit) within the body of patricians all senators of exceptionally long-standing (vetustissimum quemque ex senatu) or those of distinguished parentage (quibus clari parentes fuerunt)’Footnote 20 —a program redounding upon those already elevated? Did patrician status invest recipients with a certain level of nobility (to bring us back to the question at hand)? Syme, who had earlier endorsed Stein's modification of Gelzer's definition of imperial age nobilitas (to the effect that nobilitas fell to those descended from men who had won the consulship before a.d. 14),Footnote 21 seems to us to avoid a constraining definition in Augustan Aristocracy—though a number of his chapter titles presuppose a consensus of understanding.Footnote 22 Perhaps the issue is taken as decided; in his fourth paper therein, he speaks of ‘descendants of the Republican aristocracy’ (defined as those so descended—and perhaps patricians). With reference to that older elite, he pronounces: ‘In certain respects the definition was vulnerable. Patricians cannot be excluded; and marginal cases occur, with families collateral or of ancient praetorian rank. Any curule office qualified, so it has been argued.’Footnote 23 The practical consequences of patrician status? Moderns who have directed their attention to the actual role of patricians in political life, have focussed upon the diminishing nature of that roleFootnote 24 —but some for a paradoxical reason. Their prestige meant that a suspicious emperor might keep them from real power. They might be a threat. Whatever the reason, Jones’ survey shows that, under Domitian, patricians ‘were rigorously excluded from positions of any significance.’Footnote 25
The present modest study—which concerns itself from this point only with Nerva's line of descent (and in particular with the evidence of the scholia)—might suggest that his claim to nobility was not based upon direct descent from a consul of the ‘pre-Augustan’ period or from any consul who held the office before a.d. 14. It is to be explained either by patrician standing or earlier gentile achievement—or by the fact that the notion of ennoblement continued into the period after the death of Augustus, and that Nerva derived nobility through his grandfather who reached the (suffect) consulship under Tiberius and his father who reached the consulship under Caligula.Footnote 26 Did that mean that Eutropius felt compelled to modify his acclamation of Nerva's ‘nobility’ (within, as we have seen, an essentially positive appraisal)?Footnote 27 We turn to the question of his precise lineage.
His father (RE 15) had been a suffect consul c. a.d. 39–41; his grandfather was M. Cocceius Nerva (RE 14), a noted jurist, suffect consul in either a.d. 21 or 22, and a curator aquarum from 24 until his death in 33.Footnote 28 Frontinus (Aq. 2.102) affirms that the curator was the jurist and the grandfather of Nerva, and Frontinus has credibility on this score—for two reasons. He was an informed source on the post (which he held); and he owed his elevation to that office to Nerva.Footnote 29 This man [sc. Nerva's grandfather] was a close friend of Tiberius, retiring with him to Campania in 26 (the only consular senator in the emperor's retinue),Footnote 30 and causing Tiberius much distress when he decided—in perfect health—not to go on living.Footnote 31
In a preceding generation, bringing the family to prominence, were the affable L. Cocceius Nerva (RE 12), friend to both Antony and Octavian, and thus entrusted with delicate missions in 40 and in 37 b.c.,Footnote 32 and his brother M. Cocceius Nerva (RE 13), who owed his safety, probably after the Perusine war, to the former's charm.Footnote 33 The latter went on to be a governor of Antonian Asia in 38–37 b.c. and consul in 36. Some would add a third brother, C. Cocceius Balbus (RE 3) (cos. suff. 39).Footnote 34 These three men are the individuals found at the top of the opening stemma. M. Cocceius Nerva (cos. 36), the family's first consul ordinarius, is usually identified as the great-grandfather (or great-great-grandfather) of the emperor. Syme suggested that M. Cocceius, the curator aquarum (and grandfather of the emperor), ‘may be the son, not the grandson, of the man who inaugurated the rank of his family’, adding, in the attendant note, ‘[i]n PIR 2 C 1225 a son of the consul of 36 b.c.’.Footnote 35 Jörs had certainly made the latter assertion in the Real-Encyclopädie,Footnote 36 followed by Klebs in the first edition of the Prosopographia,Footnote 37 but Stein, in the second edition, suggested that the curator and cos. suffectus of c. a.d. 21 was the grandson of the man who brought nobilitas to the family.Footnote 38 These differences of judgement are not of the essence here, but we shall return to them in the penultimate paragraph.
Whichever of the two options outlined above was adopted (that is to say, whether or not an extra generation was believed to have existed within the gap provided in the stemma above), the line of descent was not questioned; the emperor was believed to have descended from M. Cocceius (cos. 36 b.c.).Footnote 39 But there is a fly in the ointment. Commenting on the appearance in Horace's Satires (1.5.27) of L. Cocceius (RE 12), Porphyrio adds the information that he was grandfather of the emperor. This item was easily brushed aside as ‘erroneous’ by Groag (RE 12 and PIR 2 C 1223);Footnote 40 the grandfather is established (as we saw above) as M. Cocceius Nerva, curator and jurist. But one of the parallel contributions to be found in the Pseudacronis scholia in Horatium, not self-evidently absurd, was also brushed aside (relegated to parentheses)—perhaps because it was considered to be derived from a faulty source (and transmitted in its own faulty fashion).Footnote 41 It identifies L. Cocceius (RE 12) as the great-grandfather of the emperor: Cocceius Nerua proauus Neruae fuit, qui inperauit Romae.Footnote 42 That, at least, is possible in generational terms.Footnote 43 And although at least one of the later scholiasts whose marginalia formed part of what would become Pseudacron had access to (and occasionally cited) Porphyrio, this datum could have come directly from a common source (perhaps someone like Q. Terentius Scaurus who was of Hadrianic date), because proauus is an unlikely mistake to have been made by someone copying auus.Footnote 44 It is possible that this line of descent was merely a piece of speculation on the part of the original source of the information; but it is also possible it was informed.
Early modern scholars, if noticing Pseudacron, would presumably not entertain the possibility further because of their conviction that the filiation of the Emperor Nerva's grandfather was known to be M.f., attested epigraphically.Footnote 45 PIR gives CIL 6.1539 (and its supplement 31674) and 9005 (ILS 1795).Footnote 46 The latter provides no filiation. CIL 6.1539 is a large-lettered inscription, now under cover of the portico of the Chiesa di San Giuseppe dei Falegnami but once forming a conspicuous advertisement on the external face of the Carcer Tullianum and commemorating renovations. It read, if we may trust early modern observers:
C · VIBIVS · C · F · RVFINVS · M · COCCEIVS · M · F · NERVA · COS · EX · S · C ·
The relevant section (which included Nerva's filiation) was lost to a decorative Christian architrave which adorned the modern entrance to the prison itself.Footnote 47 But the suffect consulship of C. Vibius (and thus of this Nerva, his colleague) is to be dated to c. a.d. 40.Footnote 48 This restoration of the Tullianum was undertaken by the emperor's father, not his grandfather. That is to say, no ancient evidence affirms specifically the filiation of Nerva's grandfather in contradiction of Pseudacron.
One final consideration needs, however, to be factored in (and it has been alluded to above). Had the consul of 36 b.c. been the Emperor Nerva's great-grandfather, he would have been in his fifties, possibly his late fifties, when he fathered Nerva's grandfather. A similar case of late paternity would apply if L. Cocceius were the emperor's great-grandfather. This is not impossible, but worthy of note. Bispham's calculations have been registered above (n. 43); he is convinced that there must have been a ‘silent generation’ between the consul of 36 b.c. and the jurist (sc. Nerva's grandfather).Footnote 49 That is more than plausible, though it need not be inserted into that particular line of descent.Footnote 50 The scholiast may be using proauus in a general sense that would cover abauus (great-great-grandfather). That would not be surprising and parallel usages are easy enough to find.Footnote 51 Indeed, the word is used in just this sense in the commentary on Hor. Carm. 2.3.21.Footnote 52
Porphyrio (or whoever transmitted him) was clearly in error (L. Cocceius was not the grandfather of Nerva), but it may be time to reinstate the evidence of Pseudacron. Did Nerva trace his ancestry back to one who had, like his friend Maecenas, remained content with equestrian status,Footnote 53 wealthy and of great service to powerful friends?Footnote 54 If so, Nerva's nobility, if it is to be technically explained, derived from either his patrician status or from a nobility inherited by his grandfather through association with an uncle's (or perhaps grand-uncle's) achievement:Footnote 55 an interesting case of collateral ennoblement. Or it was won by Nerva's grandfather himself, a case of post-Augustan ennoblement?