PORTRAITS.
The Ara Pacis, the Arch of Titus, and the Column of Trajan
are monuments of key importance for the art of Imperial Rome at the
height of its power. To single out equally significant works among the
portraits of the same period is much more difficult. Their production
was vast, and the diversity of types and styles mirrors the ever more
complex character of Roman society. If we regard the Republican
ancestral image tradition and the Greek-inspired Augustus of
Primaporta as opposite extremes, we can find almost any variety of
interbreeding between the two. The fine head of the emperor Vespasian,
of about 75 A.D., is a casein point (fig. 278). He was the first of the
Flavian emperors, a military man who came to power after the Julio-Claudian
(Augustan) line had died out and who must have viewed the idea of
emperor worship with considerable skepticism. (When he was dying, he is
reported to have said, "It seems I am about to become a god.") His
humble origin and simple tastes may be reflected in the anti-Augustan,
Republican flavor of his portrait. The soft, veiled quality of the
carving, on the other hand, with its emphasis on the texture of skin and
hair, is so Greek that it immediately recalls the seductive marble
technique of Praxiteles and his school (compare fig. 208).

278. Vespasian.
c. 75 A.D. Marble,
lifesize, with damaged chin repaired. Museo delle Terme, Rome
279. Portrait of a Lady,
ñ. 90 A.D. Marble,
lifesize. Museo Capitolino, Rome
280. Trajan,
ñ. 100 A.D. Marble,
lifesize. Museum, Ostia
A similar refinement can be felt in the surfaces of the slightly later
bust of a lady (fig. 279), probably the subtlest portrait of a woman in
all of Roman sculpture. The graceful tilt of the head and the glance of
the large eyes convey a gentle mood of reverie. And how effectively the
silky softness of skin and lips is set off by the many corkscrew curls
of the fashionable coiffure! The wonderful head of Trajan (fig. 280), of
about 100 A.D., is another masterpiece of portraiture. Its firm, rounded
forms recall the Augustus of Primaporta (see fig. 268), as does the
commanding look of the eyes, dramatized by the strongly projecting
brows. The face radiates a strange emotional intensity that is difficult
to define—a kind of Greek pathos transmuted into Roman nobility of
character (compare fig. 218).

279. Portrait of a Lady
Trajan still conformed to age-old Roman custom by being clean-shaven.
His successors, in contrast, adopted the Greek fashion of wearing beards
as an outward sign of admiration for the Hellenic heritage. It is
therefore not surprising to find a strong neo-Augustan, classicistic
trend, often of a peculiarly cool, formal sort, in the sculpture of the
second century A.D. This is especially true during the reigns of Hadrian
and Marcus Aurelius, both of them private men deeply interested in Greek
philosophy. We can sense this introspective quality in the equestrian
bronze statue of Marcus Aurelius (fig. 281), which is remarkable not
only as the sole survivor of this class of monument but as one of the
few Roman statues that remained on public view throughout the Middle
Ages. The image showing the mounted emperor as the all-conquering lord
of the earth had been a firmly established tradition ever since Julius
Caesar permitted an equestrian statue of himself to be erected in the
Forum Julium. The Marcus Aurelius, too, was meant to characterize the
emperor as ever victorious, for beneath the right front leg of the horse
(according to medieval accounts) there once crouched a small figure of a
bound barbarian chieftain. The wonderfully spirited and powerful horse
expresses this martial spirit. But the emperor himself, without weapons
or armor, presents a picture of stoic detachment. He is a bringer of
peace rather than a military hero, for so he indeed saw himself and his
reign (161-180 A.D.).

281. Equestrian Statue of
Marcus Aurelius. 161-180 A.D.
Bronze, over-lifesize.
Piazza del Campicloglio, Rome
It was the calm before the storm. The third century saw the Roman Empire
in almost perpetual crisis. Barbarians endangered its far-flung
frontiers while internal conflicts undermined the authority of the
Imperial office. To retain the throne became a matter of naked force,
succession by murder a regular habit. The "soldier emperors," who were
mercenaries from the outlying provinces of the realm, followed one
another at brief intervals. The portraits of some of these men, such as
Philippus the Arab (fig. 282; see fig. 116), who reigned from 244 to 249
A.D., are among the most powerful likenesses in all of art. Their facial
realism is as uncompromising as that of Republican portraiture, but its
aim is expressive rather than documentary. AH the dark passions of the
human mind—fear, suspicion, cruelty—suddenly stand revealed here, with a
directness that is almost unbelievable. The face of Philippus mirrors
all the violence of the time. Yet in a strange way it also moves us to
pity. There is a psychological nakedness about it that recalls a brute
creature, doomed and cornered. Clearly, the agony of the Roman world was
not only physical but spiritual. That Roman art should have been able to
create an image of a man embodying this crisis is a tribute to its
continued vitality.
The results will remind us of the head from Delos (fig. 218). Let us
note, however, the new plastic means through which the impact of these
portraits is achieved. We are struck, first of all, by the way
expression centers on the eyes, which seem to gaze at some unseen but
powerful threat. The engraved outline of the iris and the hollowed-out
pupils, devices alien to earlier portraits, serve to fix the direction
of the glance. The hair, too, is rendered in thoroughly un-Classical
fashion as a close-fitting, textured cap. The beard has been replaced by
a stubble that results from roughing up the surfaces of the jaw and
mouth with short chisel strokes.
A somewhat later portrait, probably that of the Greek philosopher
Plotinus, suggests a different aspect of the third-century crisis (fig.
283). Plotinus' thinking—abstract, speculative, and strongly tinged with
mysticism—marked a retreat from concern with the outer world that seems
closer to the Middle Ages than to the Classical tradition of Greek
philosophy. It sprang from the same mood that, on a more popular level,
expressed itself in the spread of Oriental mystery cults throughout the
Roman empire. How trustworthy a likeness our head represents is hard to
say. The ascetic features, the intense eyes and tall brow, may well
portray inner qualities more accurately than outward appearance.
According to his biographer, Plotinus was so contemptuous of the
imperfections of the physical world that he refused to have any portrait
made of himself. The body, he maintained, was an awkward enough likeness
of the true, spiritual self. Why bother to make an even more awkward
"likeness of a likeness"?
Such a view presages the end of portraiture as we have known it so far.
If a physical likeness is worthless, a portrait becomes meaningful only
as a visible symbol of the spiritual self. It is in these terms that we
must view the head of Constantine the Great, the first Christian emperor
and reorganizer of the Roman state (fig. 284). No mere bust, this head
is one of several remaining fragments of a huge statue from the apse of
Constantine's gigantic basilica (see fig. 255). Although imperial
sculptures, including other colossal statues of the period, show the
ruler standing, this one probably depicted him seated nude in the manner
of Jupiter, with a mantle draped across his legs. According to Eusebius,
his right hand held a cross-scepter, making him a Christian ruler of the
world, although the surviving hand points straight up. The other hand
may have held an orb. The head alone is over eight feet tall. Everything
is so out of proportion to the scale of ordinary men that we feel
crushed by its immensity. The impression of being in the presence of
some unimaginable power was deliberate. We may call it superhuman, not
only because of its enormous size, but even more so perhaps as an image
of Imperial majesty. It is reinforced by the massive, immobile features
out of which the huge, radiant eyes stare with hypnotic intensity. All
in all, the colossal head conveys little of Constantine's actual
appearance, but it does tell us a great deal about his view of himself
and his exalted office.

282. Philippus the Arab.
244-49 A.D. Marble, lifesize. Vatican Museums, Rome
283. Portrait Haul (probably
Plotinus). Late 3rd
century A.D. Marble, lifesize. Museum, Ostia
284. Lomtantinc the Great.
Early 4th century A.D. Marble, height 8' (2.4 m). Palazzo dei
Conservatori, Rome
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