The Gold Coinage of Diocletian
The Collection of the late Dr. Ivo Lukanc
Ivo Lukanc (1926-1999) can best be described as being “a
good guy” who lived life to the fullest and was passionate
about everything he did. The photograph in our catalogue shows him as
he really was: a happy man in the Alps with a Pyrenean
Mountain Dog who was equally happy to be with him. He
could be kind and generous, he was definitely fun to be
with, and he was highly intelligent; however, he could also
be very tough, especially if you disagreed with him, and
once he got an idea into his head, that idea would basically
be set in concrete! He was an economist, a journalist,
a mountaineer and sportsman, a Slovenian patriot
and a successful man in every way; he was obsessed by the
Dalmatian emperor Diocletian and, as such, built up the
most extensive collection of the gold coins of Diocletian
ever formed. He was born in 1926 in the Yugoslav city of
Pancevo (prior to 1918 it had been part of the Kingdom of
Hungary): his father was Serbian and his mother Hungarian.
The family was forced to flee to Ljubljana after
Pancevo was occupied by the Germans in 1941, and the
city was ruled by local Germans who attacked the Serbs
and the Jews. While a high-school student in Ljubljana Ivo
Lukanc joined the resistance. In 1950 he earned a degree
in economics from the university; later, after his retirement,
he received a doctorate in numismatics (!) from
the École des Hautes Études en Sciences Sociales in Paris
in 1995. He wrote several books, the most important of
them, for us, was his Diocletianus, der Römische Kaiser
aus Dalmatien (Wetteren, 1991), which was intended to
be a corpus of Diocletian’s gold coinage. It has an introduction
by Michel Amandry and a highly laudatory preface
by G. Depeyrot.
Diocletian (c. 242/5-311/312)
Emperor: 20 November 284 - abdicated 1 May 305
Diocletian - his given name was Gaius Valerius Diocles
- was born in Dalmatia to a simple family but clearly had
great ability, ambition and intelligence. This drove him
to choose a career in the military, becoming a junior officer
under Aurelian and Probus, and a cavalry commander
under Carus. As recounted below he was proclaimed
emperor after the revelation of the death of Numerian in
284 (and changed his name to Diocletianus from Diocles).
From the onset he surrounded himself with a highly
competent staff, which he certainly needed given the
many reforms and changes he made to the organization
of the Empire. He had presumably already realized that
the extent of the Empire, and the many threats it faced,
made it virtually impossible for a single man to rule on
his own; so, in July 285 he made his colleague Maximian
Herculeus Caesar, and on 1 April 286 he raised him to
be co-Augustus and put him in charge of the West with
his primary base in Treveri, while he took charge of the
East, ruling from Nicomedia. From the start of his reign,
he turned his attention to the various threatening barbarian
tribes - the Quadi, Marcomanni and the Sarmatians
- as well as to Sassanid Persia. In the West there was a
successful campaign against the Alamanni, but the major
threat was, from 286, Carausius’s breakaway ‘empire’ in
Britain. In 293, continuing his reorganization of the Empire,
Diocletian created a Tetrarchy: in addition to the two
Augusti, there were two Caesares, in the West, with Maximian,
there was Constantius (who finally regained Britain
by his victory over Allectus in 296), and, subordinate
to Diocletian in the East, Galerius (he had been involved
both in Egypt and against the Persians). In 297 and 298 Diocletian was in Egypt suppressing the rebel Domitius
Domitianus and mopping up his followers. There was war
with Persia from 296 to 299; it ended with Galerius’s victories
in 298 and the subsequent peace treaty of Nisibis the
following year. The final years of Diocletian’s reign were
overshadowed by his persecutions: first of the Manicheans
starting in 302, and then, spurred on by Galerius, of
the Christians. This last was particularly drastic, but basically
confined to the East, and lasted until 311, well after
Diocletian’s abdication - he had long been sick and seems
to have died (perhaps by suicide) in 312. But Diocletian’s
most important actions were his changes in the way the
Empire was governed: the emperor’s position progressed
from primus inter pares to autocrat, with all the ceremonial
that implied; the bureaucracy expanded drastically;
the army was reorganised; the provinces were increased
from 50 to nearly 100 (they were reduced in size) and
combined into larger units termed dioceses of which there
were 12; taxation was reformed; laws were codified; the
currency was regularized.
Diocletian’s retirement in 305 was driven by his increasingly
poor health. He moved to his palace on the Dalmatian
coast, in the little town of Spalatum (today’s Split,
in modern Croatia); much of it is preserved fairly intact.
He seems to have begun building this ‘great house’ as
early as 295, and the works surely continued after he had
moved in. Diocletian’s wife was Aurelia Prisca, whom
he had married well prior to becoming emperor. They
had a daughter, Galeria Valeria, who subsequently married
the then caesar Galerius in 293. Instead of joining
Diocletian in Spalatum when he retired in 305, Prisca
moved to Thessalonica to be with her daughter and sonin-
law; after Galerius’s death in 311 she and her daughter
were meant to be protected by Licinius, but they distrusted
him and fled to Maximinus Daza. This proved to be a
mistake, since he wanted to marry Galeria; when she refused,
she was exiled to Syria. After Maximinus’s death
in 313, Licinius condemned both Prisca and Galeria to
death; they escaped but were recognized in Thessalonica
in 315, turned in to Licinius’s soldiers, and executed. A
sad end for the family of one of Rome’s greatest rulers.
The Coinage of Diocletian
N.B. The dates used for the coins of Diocletian in this catalogue are, with
some modifications, those established by Depeyrot in his study of 1995. Those
used by the RIC, in volumes V, 2 (1933) and VI (1967), are noted after
the respective reference numbers.
Diocletian’s first coins must have been issued very shortly
after he was proclaimed emperor outside of Nicomedia
in November 284. Numerian, the brother of Carinus and
co-emperor after the death of their father Carus on campaign
against the Persians in 283, was leading the orderly
Roman withdrawal and had reached Emesa by March 283.
At some point thereafter, Numerian, who had been ill and
was being carried in a closed litter, seems to have died,
either by assassination or through natural causes, but this
was kept secret by the Praetorian Prefect, Arrius Aper,
Numerian’s father-in-law. By the time the cortege reached
Bithynia Aper was forced to reveal the emperor’s death: on
20 November 284 the Army unanimously proclaimed Diocletian
(then still named Diocles) as their new Emperor;
he immediately accused Aper of having murdered Numerian,
drew his sword and killed the Prefect on the spot.
One of the very first things Diocletian must to have done
was to order coinage to be struck in his name; especially
gold to pay donatives to his supporters (do note that while
we say ‘the emperor ordered coins to be struck’ there
must have been a committee or working group of experts
in charge of getting it done). These gold aurei were struck,
beginning in December 284, at the nearby mint of Cyzicus
and the great eastern mint of Antioch. These mints
continued striking on into 285 and later; after the death
of Carinus in July 285, gold aurei were also struck in Lugdunum
and Rome; then, starting in 286, in Ticinum and
Siscia; Treveri, Nicomedia and Alexandria only started
striking aurei in 294 (after the formation of the First Tetrarchy);
gold issues from Carthage and Aquileia began in
297, and Thessalonica’s only issue was in 302.
From west to east the range of dates for Diocletian’s gold
coinage are as follows:
Treveri 294-303
Lugdunum 285-286
Carthage 297-303
Ticinum 286-304
Rome 285-299
Aquileia 297-303
Siscia 286-304
Thessalonica 302
Nicomedia 294-303
Cyzicus 284-294
Antioch 284-305
Alexandria 294-305
Diocletian’s aurei were, interestingly enough,
struck on two different weight standards: the earliest,
from 284 to 286, were struck at 70 to the Roman
pound - some marked with O and all weighing c.
4.50 g - while those struck after 286, when Maximianus
was made co-Augustus on 1 April 286, were struck at a
standard of 60 to the pound - some marked with a variant
of Ξ and weighing c. 5.50 g. A convenient chronological
marker was provided by certain reverse legends that, prior
to 1 April 286, ended in AVG - indicating there was a
single emperor; after the coronation of Maximianus they
ended in AVGG. This change of standard seems to have
been empire-wide in scope, and it is rather unlikely that
it was done on the initiative of Diocletian alone; as already
noted, he must have had what in modern times would
be termed a committee of experts to advise him and put
the change into effect. Interestingly enough, there were
a very few gold coins that were struck on a heavier than
normal standard; they weigh c. 6.30 g and exactly what
they were meant to be is unclear (see lots 16 and 43). They
were neither distinctive enough nor heavy enough to be
multiple-aureus “medallions” or “multipli”: Lukanc, pp.
119-122, provides (pp. 119-122) a convenient list of them,
ranging from 1 1/2 to 10 aurei in weight (8.93 - 54.45 g).
So what were they? Perhaps they were designed to be donatives
given to a select audience deserving of gifts better
than standard aurei but less than true medallions. The modification of the weight standard of the gold coinage
was not the only major change Diocletian’s “Council of
Economic Advisors” made to the Empire’s monetary system:
they brought back a fine silver ‘denarius’ (we call it
the ‘argenteus’), the 5% silver bronze coin termed a “follis”
, and a bronze radiate used as a fraction. Not only that,
the coinage underwent a major iconographic transformation,
especially the gold, silver and argentiferous bronze.
As we see here, the early coin portraits of Diocletian (as
lot 1) portray him as the standard adult military leader,
bearded, laureate (or radiate), draped, and cuirassed (or
not). In other words, it was the same basic portrait (apart
from individual features) that had been used for every
emperor from Macrinus to Carinus (of course there were
some young and/or beardless emperors, as, for example,
Elagabalus, Severus Alexander, Gordian III, Balbinus
and Valerian I). Then, beginning in Rome in 287, things
began to change, and a new official portrait was introduced;
first in Rome and Cyzicus and then, by 291, in all the
official mints in the Empire (Antioch continued with the
old style until late 290). The imperial portrait was used as
an image of power - with a simple but strong head - never
draped in any way, laureate with militarily short hair,
and a carefully cropped beard (as lot 32) - rather than
as a clearly recognisable individual (though these heads,
while all very similar, did have ‘individualistic aspects).
Thus, when the imperial dyarchy became a tetrarchy there
were now four ‘portraits’, each of a stern-looking powerful
man, virtually indistinguishable from each other. Busts
of this style continued as the standard obverse for over 20
years, but then things began to change under Constantine
I. As early as 306, when he was Caesar, he appeared beardless
on an aureus from Serdica (this could have been a die
engraver’s error); normally, however, he had the same type
of bearded portrait that all the rulers since the early 290s
had (as on his issues as Caesar from Rome [306/307]; his
FIL AVG issues from Thessalonica [309]; and his issues
as Augustus from Thessalonica [310] and Antioch [311]).
But around this time all his portraits become unmistakably
beardless; in some ways these beardless heads and busts
hark back to those of Trajan two hundred years earlier. Given
when this happened, the Battle of the Milvian Bridge
was in 312 and the Edict of Milan was in 313, could the
suppression of Constantine’s bearded portraits be a sign
of Constantine’s turn toward Christianity? In fact, beardless
imperial portraits must have been considered a mark
of Christianity; thus, the reaction to the beards worn by
Julian II and Eugenius. As such for nearly three hundred
years, until the reign of Phocas (602-610), no emperor
wore a beard. From then on, with a very few exceptions for
very young rulers, every subsequent emperor was bearded;
after all, by this time the beard had moved from being a
symbol of paganism to being an Imitation of Christ.
The Beaurains - Arras Hoard of 1922
Three of the aurei in the Lukanc Collection can be traced
back to the very important Beaurains Hoard of 1922
(two definitely, lots 66 and 69, and one almost certainly,
lot 43). Beaurains is a suburb of the French city of Arras
(thus, this find was first termed the ‘Arras Hoard’), and it
was there, during building work, that the find was uncovered.
The best account of the entire discovery can be found
in P. Bastien & C. Metzger’s Le Trésor de Beaurains (dit
d’Arras), Wetteren, 1977, so only a brief summary needs
to be here. The treasure included gold jewelry, silver
household ware, some worn Roman silver coins, and a large
number of Roman gold coins and medallions. Had the
find been immediately secured when it was dug up everyone
would be better off, but it was gathered up and then
put into an unlocked shed overnight. No surprise, when it
was inspected the next day, it was virtually all gone! This
was compounded by the fact that some of the workers were
Belgians from across the nearby border, so that the subsequent
major international recovery effort was doubly difficult.
As can be seen from Bastien’s excellent catalogue a
great number of coins and medallions were recorded, but
as he points out in his introduction (pp. 8-23), there have
been rumors, some certainly true, that a good number of
coins and medallions ‘got away’. After all, our lot 43 shows
every sign as being from this find (and was identified as
such in the Hess sale of 1931) but is missing from Bastien’s
account. Perhaps the most famous of all the coins from
Beaurains is, of course, the great gold 10 aureus medallion
with the reverse legend REDDITOR LVCIS AETERNA,
which shows the personification of London kneeling and
welcoming Constantius Caesar; this medallion, minted
in Treveri, is now in the museum at Arras (there is
copy in the British Museum). But there has long been a
rumour that another exists in a collection in Belgium, an
escapee from that shed. Another rumour, and not really
a far-fetched one, is that there was also at least one really
enormous medallion, supposedly weighing approximately
half a kilo (i.e., 100 aurei!) that was melted down (!) by the
jeweler it was taken to by those Belgian workers since he
did not believe it could possibly be real! What a hoard this
is, but what a hoard it might have been!
Dr. Alan Walker, PhD
Dimitrios Gerothanasis MA
Johannes Stelzhammer MA
Rex Gao