Portraits of the Four Tetrarchs

Smarthistory
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10 Video Views·May 4, 2026
Portraits of the Four Tetrarchs, from Constantinople, c. 305, porphyry, 4' 3" high (St. Marks, Venice). Speakers: Dr. Steven Zucker and Dr. Beth Harris. Created by Beth Harris and Steven Zucker.
On the side of St. Mark's Basilica in Venice
is a sculptural group, actually two pieces of stone
put together that show the four tetrarchs.
And they really are embedded in the corner of the church.
They obviously don't belong.
For one thing, the color is different.
That's true.
And there is a sense in which there
are a lot of things here on the side of the basilica that
seem to have been just added.
That's absolutely right.
We see all kinds of fabulously colored marbles,
as well as columns which we know were spoils
from the Fourth Crusade, when the Venetians who
had tried to get to the Holy Land
didn't make it, and instead sacked other Christians
in Constantinople.
So they brought back enormous spoils,
and the tetrarchs likely came in that group.
But what's important to remember is
that the tetrarchs are not Byzantine.
The tetrarchs are not even Christian.
This is sculpture from the last phase
of polytheistic Roman culture.
In the third century, the Roman Empire
suffered tremendous civil wars.
At the end of that century, the Emperor Diocletian
decided that the empire might be more stable
if he divided power.
And so what he did is he set up a structure
called the tetrarchy, which means four
and refers to four rulers.
There were two Augusti, that is two senior emperors,
and then there were two Caesars, two junior emperors.
Art historians think that the four figures that we see here
represent the four emperors and co-emperors,
Diocletian, Maximianus, Galerius, and Constantius.
Now, it's really impossible to tell who's who,
and I think it's important to put this
in the context of the history of portraits of emperors.
There are portraits of emperors going back
to the first emperor, Augustus.
And they had been very individualized.
These were real portraits.
Yes, they might be idealized, but there was always
enough specificity so that you could recognize.
In fact, their very purpose was so
that the likeness of the emperor could be distributed
throughout the empire.
And we see, during this period of the tetrarchy,
that is completely gone.
It's all gone.
First of all, the figures stand in very similar positions.
Their bodies are the same sizes, aside from the fact
that in each pair, one is bearded and one isn't.
Their faces look exactly the same and are very abstracted.
The costume is identical as well.
I want to go back to that idea of the beards
for just a moment.
Scholars have hypothesized that it's
the Augusti who are bearded.
That is, these are the elders, whereas the clean-shaven
figures are the Caesars.
Look at their faces.
Their eyes have been reduced to laws and shapes.
I use the word abstract, where facial features
have none of the subtlety of the way
that our faces really look in the world.
And it's not just the faces.
It's the structure of the body.
Where is the contrapposto?
Where is the understanding of the musculature of the bone
structure?
This is the art that has inherited
the legacy of ancient Greece and Rome,
and yet there is clearly this rejection
of all of the naturalism that had come before.
Now, part of this may have to do with the fact
that this is carved in poffery.
This is a purple poffery, and it's
a stone that was reserved for the emperor.
It was a very rare stone.
It was imported from Egypt.
It's quite hard.
And so unlike marble, this would have
been much more difficult to get the kind of fine features
that we associate with much classical sculpture.
Nevertheless, there is finely carved poffery,
and so this was a decision.
And the figures, although lacking
the naturalism of the tradition of ancient Greece and Rome,
express valor, a sense of working together, of harmony.
They grasp each other.
Their faces are turned toward each other.
Their bodies are turned toward each other.
They express a solidity that I imagine
was somewhat reassuring in the face of all of the turmoil
of the third century.
I think that's exactly right.
They are rendered as military figures,
and there is a real sense of solidarity.
Look at how they grasp their swords.
And those are great swords.
They seem to have eagle hilts, if you look closely.
But look at the way that the drapery is rendered,
for instance, in the forearms.
And this so makes the point.
If you look at the drapery of a classical figure,
if you look at the drapery on the east pediment
of the Parthenon, for example, you
have this wonderful, billowing, flowing drapery
that reveals the structure of the body below it.
Here, instead, you have a series of simply cut, linear forms.
These are just lines that are decoratively
added to the surface, but in no way
reveal the structure of the body below.
Their proportions are also not natural.
Their heads are too big for their bodies.
Their shoulders are narrow.
We are at the edge of the end of the Roman Empire
and the beginning of the Christian period.
The next emperor who becomes himself a Tetrarch
is Constantine, although he defeats his co-emperor
and establishes himself as the sole emperor,
once again, of Rome.
Then he decriminalizes Christianity.
So Christianity becomes, very soon,
the official religion of the Roman Empire.
So what's so interesting is that so much early Christian art,
and certainly early medieval art,
will abstract the human figure.
And we understand that in relationship
to the new religion, to trying to not celebrate
our earthly experience, but to look towards the heavenly.
The problem, when we look at something like this,
is that we're seeing a similar kind of abstraction
of the human body without that kind of religious overlay.
And so we try to understand why there
is this rejection of the earlier classicism
without the religious aspect, at least
at the highest levels of society.
And we are left to wonder.
