The plan of this temple is missing in the Imperial
Forma Urbis. The remaining fragments for this area of the Roman Forum are on slabs V-11, VII-11, VI-6 and show plans of the
Regia, the
Temple of Castor and Pollux, the
Fons and Lacus Iuturnae, the
Basilica Iulia and the
Basilica Aemilia.
Vitruvius wrote that the temple was an example of a
pycnostyle front porch, with six closely spaced columns on the front. The arrangement of the columns, however, is uncertain, as it could be either
prostyle or
peripteral. The column order originally used for this temple is uncertain. Ancient coins with representations of the Temple of Divus Iulius suggest the columns were either
Ionic or
composite, but fragments of
Corinthian pilastre capitals have been found on the site by archaeologists. Some scholars hypothesize that the temple had an
Ionic pronaos combined with Corinthian pilasters on the
cella walls, i.e., at the corners of the cella; other scholars consider the temple to have been entirely Corinthian and the coin evidence as bad representations of Corinthian columns. The distinction between Corinthian and composite columns is a Renaissance one and not an Ancient Roman one. In Ancient Rome Corinthian and composite were part of the same order. It seems that the composite style was common on civil buildings and
Triumphal arch exteriors and less common on temple exteriors. Many temples and religious buildings of the
Augustan Age were Corinthian, such as the
Temple of Mars Ultor, the
Maison Carrée in
Nîmes, and others. The temple was destroyed by fire during the reign of
Septimius Severus and then restored. Comparisons with coins from the times of Augustus and
Hadrian suggest the possibility that the order of the temple was changed during the restoration by Septimius Severus. The
entablature and the
cornice found on the site have a
modillions and roses structure typical of the
Corinthian order. The original position of the
staircase of the
podium remains uncertain. It may have been at the front and sides of the podium, or at the rear and sides of the podium . The position at the rear is a reconstruction model based on a hypothesized similarity between this temple and the
Temple of Venus Genetrix in the
Forum of Caesar. This similarity is not proved and merely based on the fact that during the public funeral and Mark Antony's speech the body of Julius Caesar was set on an ivory couch and in a gilded shrine modelled on the Temple of Venus Genetrix. The front position is based on some evidence from 19th century excavations and on an overall impression of the actual site, and on the depictions on ancient coins.
Rostra -period coin from 125 AD – 128 AD, with representation of the Temple of Divus Iulius. Visible are the Rostra ad Divi Iuli, the arrangement of the podium, and the temple.
Dio Cassius reports the attachment of a
rostra from the battle of Actium to the podium. The so-called
Rostra ad Divi Iuli was a podium used by orators for official and civil speeches and especially for Imperial funeral orations. The podium is clearly visible on coins from the Hadrian period and in the
Anaglypha Traiani, but the connection between the rostra podium and the temple structure is not evident. Also in this case there are many different hypothetical reconstructions of the general arrangement of the buildings of this part of the Roman Forum. According to one, the Rostra podium was attached to the Temple of Divus Iulius and is actually the podium of the Temple of Divus Iulius with the rostra (the prow of a warship) attached in a frontal position. According to other reconstructions, the Rostra podium was a separate platform built west of the temple of Divus Iulius and directly in front of it, so the podium of the Temple of Divus Iulius was not the platform used by the orators for their speeches and not the platform used to attach the prows of ships taken at Actium. This separate and independent podium or platform, known as
Rostra ad Divi Iuli, is also called
Rostra Diocletiani, due to the final arrangement of the building.
Upper decoration of the frontal pediment From an analysis of ancient coins it is possible to determine two different series of decorations for the upper part of the frontal pediment of the temple. Fire tongues (their identification is uncertain) decorated the pediment, as in Etruscan decorated antefixes, similar to the decoration of the
Temple of Jupiter on the Capitoline Hill. The fire tongues perhaps recalled the flames of the comet (star) on Augustan period coins. With a star as the main decoration of the tympanum, as can be seen on the Augustan coins, the whole temple had the function to represent the comet (star) that announced the deification of Julius Caesar and the reign of Augustus, as reported by Pliny the Elder. A statue at the vertex of the frontal pediment and two statues at the end corners of the pediment, the classical decoration for the pediments of the Roman temples, date to Hadrian's reign. Other Augustan era buildings with that particular type of Etruscan-style decoration appear on coins, as well as on representation of the frontal section of the Curia.
The niche and the altar The
niche and the
altar in front of the
temple podium are also a problem of interpretation based on scarce data. They were visible in 29 BC when the temple was dedicated and when Augustus' coin series with the temple of Divus Iulius was struck from 37 BC to 34 BC. For the period after the coinage of that series there is no clear evidence. It is known that at some time the altar was removed and the niche filled in and closed with stones to create a continuous wall at the podium of the temple. According to various hypotheses this was done either in 14 BC, or probably before the 4th century AD, or after
Constantine I or
Theodosius I, due to religious concerns about the
pagan cult of the
emperor. Richardson and other scholars hypothesize that the filled in niche may have not been the altar of Julius Caesar, but the
Puteal Libonis, the old
bidental used during trials at the
Tribunal Aurelium for public oaths. According to C. Hülsen the circular structure visible under the
Arch of Augustus is not the
Puteal Libonis, and other circular elements covered in travertine near the Temple of Caesar and the Arcus Augusti are too recent to belong to the Augustan era.
Measurements The temple measured in width and in length, corresponding to 91 by 102 Roman feet. The podium or platform area was at least 5.5 m high (18 Roman feet) but only 3.5 m at the front. The columns, if
Corinthian, were probably 11.8 to 12.4 m high, corresponding to 40 or 42 Roman feet. -era coin from 37 BC – 34 BC with a representation of the Temple of Divus Iulius. Visible are the altar, a statue of Caesar veiled and with a
lituus, and a star in the tympanum.
Materials •
Tuff (inner parts of the building) •
Opus caementicium (inner parts of the building) •
Travertine (walls of the podium and the cella) •
Marble (podium revetement, columns, entablature and pediment of the temple; probably marble from
Luni, i.e.,
Carrara marble)
Decoration and position of the remains fresco of
Venus Anadyomene, probably a copy of
Apelles' depiction of
Alexander the Great's mistress
Campaspe as Venus, a work kept in the Temple of Divus Iulius after
Augustus dedicated it to the shrine of Caesar. The
frieze was a repetitive scroll pattern with female heads,
gorgons and winged figures. The
tympanum, at least during the first years, probably showed a colossal star, as can be seen on the Augustan coins. The cornice had
dentils and beam type modillions (one of the first examples ever in Roman temple architecture) and undersides decorated with narrow rectangular panels carrying flowers, roses, disks,
laurel crowns and
pine-cones. Remnants of the decorations, including elements of a
Victory representation and floral ornaments, are visible on site or in the Forum Museum (
Antiquarium Forense).
Interior Augustus used the temple to dedicate offerings of the spoils of war. It contained a colossal statue of Julius Caesar, veiled as
Pontifex Maximus, with a star on his head and bearing the
lituus augural staff in his right hand. When the doors of the temple were left open, it was possible to see the statue from the Roman Forum's main square. In the cella of the temple there was a famous painting by
Apelles of
Venus Anadyomene. During the reign of Nero Apelles' painting deteriorated and could not be restored, so the emperor substituted for it another one by Dorotheus. There is also another painting by Apelles, depicting the Dioscuri with Victoria. ==See also==