Roman Florence – From Florentia to the Medieval City

Roman Florence began as Florentia, a settlement beside the Arno whose urban structure still influences the city today. Long before the Medici, Brunelleschi and Michelangelo transformed Florence into a centre of Renaissance culture, Roman streets, public buildings and defensive walls established a framework that later generations repeatedly adapted.

Understanding ancient Florentia adds an entirely different dimension to a walk through Florence. Piazza della Repubblica occupies approximately the area of the Roman forum, the curve of Via Torta preserves the form of the ancient amphitheatre, archaeological remains survive beneath Palazzo Vecchio, and the area around Ponte Vecchio recalls an ancient crossing of the Arno.

This article explores the earliest chapter of our History of Florence – Complete Guide.

Before Florentia – The Arno Valley Before the Romans

The history of Florence did not begin with Rome. The middle Arno valley had been inhabited long before the establishment of Florentia, while the Etruscans controlled much of Tuscany and created important settlements throughout the region.

Nearby Fiesole, ancient Faesulae, occupied a strategically advantageous position on the hills above the valley. Its elevated setting offered natural protection and commanded routes through the surrounding landscape.

The Romans gradually extended their control over Etruria and transformed the political and economic geography of the region. Florence would develop not on a defensive hilltop but on the plain beside the Arno, where roads and a river crossing created excellent possibilities for movement, agriculture and commerce.

The Foundation of Roman Florentia

The precise circumstances surrounding the foundation of Roman Florence remain partly debated. Florentia is generally associated with Roman reorganisation of the region during the late Republican and early Augustan periods, traditionally in the late first century BC.

Older accounts often present a precise foundation story involving Julius Caesar and the settlement of military veterans. Modern historical interpretation is more cautious. What is clear, however, is that Florentia developed according to Roman urban principles and occupied a strategically useful position close to the Arno and important land routes.

Its Latin name, Florentia, is generally associated with flourishing or prosperity. Whether the name carried a deliberate symbolic meaning or simply reflected Roman naming conventions, it eventually developed into the modern name Firenze.

Why Was Florentia Founded Here?

Location was fundamental. Florentia stood close to a crossing of the Arno and along routes connecting northern and central Italy.

The surrounding plain also offered suitable land for settlement and agriculture. Meanwhile, the Roman road network brought travellers, soldiers, merchants and goods through the region.

Florentia therefore developed where river and road communications met – a geographical advantage that continued to influence Florence long after the Roman period ended.

The Roman Street Plan of Florence

One of the most fascinating aspects of Roman Florence is that parts of its ancient plan remain perceptible in the modern city. Like many Roman settlements, Florentia was organised around two principal street axes.

The cardo maximus ran approximately north to south, while the decumanus maximus crossed it from east to west. Smaller streets created regular urban blocks around these principal routes.

Their intersection led to the civic heart of the Roman town: the forum.

Piazza della Repubblica and the Roman Forum

Today’s Piazza della Repubblica occupies approximately the area of the ancient Roman forum. The modern square looks very different, particularly after the enormous transformations carried out during the nineteenth century.

Nevertheless, this part of Florence has remained an important urban centre for roughly two thousand years. In Roman times, the forum served political, commercial, religious and social functions.

Public buildings, temples and commercial premises would have surrounded the central space. Therefore, standing in Piazza della Repubblica means standing close to the centre of ancient Florentia even though almost nothing of the Roman square remains visible at street level.

The area’s nineteenth-century transformation belongs to another important chapter explored in our guide to Florence as Capital of Italy – Firenze Capitale 1865–1871.

How Large Was Roman Florence?

Florentia was far smaller than the historic centre visitors explore today. Its original walled area occupied a compact zone north of the Arno, centred approximately around modern Piazza della Repubblica.

The Roman walls enclosed a settlement small enough to cross on foot within minutes, yet the town contained the characteristic institutions of Roman urban life.

Beyond the walls lay roads, cemeteries, agricultural land and buildings that gradually expanded outside the original limits. As Florentia prospered, its activities increasingly extended into the surrounding landscape.

The contrast with later Florence is striking. Medieval walls eventually enclosed a dramatically larger city, while the nineteenth century removed much of that defensive system altogether.

The Forum – Heart of Roman Public Life

The forum formed the civic centre of Florentia. It was not merely a market square but the place where political, commercial, religious and social activities converged.

Citizens could conduct business, encounter officials, attend ceremonies and visit religious or administrative buildings. Shops and commercial premises added constant movement to the surrounding streets.

This concentration of functions helps explain why approximately the same area remained important long after Roman institutions disappeared.

From Roman Forum to Mercato Vecchio

During the Middle Ages and early modern period, the area developed into the Mercato Vecchio, surrounded by narrow streets, houses, shops and religious buildings.

Much of this later neighbourhood disappeared during the redevelopment of Florence in the nineteenth century. Consequently, Piazza della Repubblica contains several historical cities layered upon one another: Roman forum, medieval market district and modern monumental square.

The Roman Theatre Beneath Palazzo Vecchio

One of the most remarkable archaeological sites of Roman Florence lies beneath one of the city’s best-known later monuments.

Remains of the Roman theatre survive below the area of Palazzo Vecchio and surrounding structures. The theatre developed near the southern edge of the Roman settlement, close to the Arno.

Archaeological investigation has revealed parts of the structure and helped researchers reconstruct its development. The theatre could accommodate large audiences and confirms that Florentia possessed a significant culture of public entertainment.

The historical layering is extraordinary: a Roman theatre lies beneath the medieval and Renaissance palace that later became the political heart of Florence.

The Amphitheatre and Via Torta

Florentia also possessed an amphitheatre intended for forms of public entertainment different from theatrical performances. It stood outside the eastern side of the original Roman walls.

The monument itself has largely disappeared beneath later buildings. However, its shape left a remarkable imprint on the street plan.

Walk along Via Torta near Santa Croce and the curved route immediately stands out from the straighter streets around it. Medieval and later construction gradually absorbed the foundations and geometry of the Roman amphitheatre.

The ancient monument therefore survives not primarily as an exposed ruin but as a shape embedded within modern Florence.

Roman Baths and Everyday Life

Public baths formed an essential part of Roman urban life. They combined hygiene with exercise, relaxation and social interaction.

Archaeological evidence indicates the presence of bath complexes in Florentia, including structures in areas later incorporated into medieval Florence.

For Roman citizens, baths were meeting places as well as practical facilities. People could exercise, converse, conduct informal business and spend leisure time there.

Florentia also contained houses, workshops, shops, warehouses and religious buildings. Monumental remains naturally receive most attention today, but everyday activity provided the real rhythm of ancient urban life.

The Arno and the Roman Crossing

The Arno offered opportunities and dangers in equal measure. It supplied water and supported economic activity, yet flooding remained a recurring threat throughout Florentine history.

A crossing close to the location of today’s Ponte Vecchio connected Florentia with routes south of the river. The exact form and chronology of ancient bridge structures changed over time, but the importance of this crossing point endured.

The bridge visible today is medieval, not Roman. Nevertheless, its position belongs to a much older geography of movement through the Arno valley.

From the crossing, routes continued south through Tuscany and towards Rome, making this area strategically important for travel and trade.

Commerce and the Growth of Florentia

Roman Florence benefited from its place within a wider network of roads, settlements and agricultural land. Products from the surrounding countryside entered the town while merchants and travellers moved through the region.

During the imperial period, Florentia developed into an increasingly prosperous regional centre. Its forum, theatre, baths and amphitheatre indicate civic ambitions extending beyond those of a minor roadside settlement.

The Arno valley also connected the town with the wider economy of Roman Tuscany. In this sense, Florence’s later commercial success did not emerge from geographical accident.

The advantages that helped medieval merchants and bankers prosper had already made the location valuable in antiquity.

Christianity Comes to Florence

During late antiquity, Christianity gradually transformed the religious and cultural landscape of Florentia. This development occurred over generations rather than through one dramatic event.

Florentine tradition associates the early Christian community particularly strongly with Saint Minias, or San Miniato, remembered as an early Christian martyr. The historical details surrounding his life remain uncertain, but his cult became deeply embedded in the city’s religious identity.

The magnificent Basilica of San Miniato al Monte is medieval, yet its dedication preserves the memory of Christianity’s much earlier development in Florence.

As the new religion became established, places of worship, burial customs and patterns of urban life gradually changed.

From Roman Empire to Late Antiquity

The decline of the Western Roman Empire did not cause Florentia to disappear overnight. Instead, the city experienced a long period of political, economic and social transformation.

Imperial institutions weakened, trade patterns changed and Italy became the setting for conflicts between competing powers. Public buildings lost their original functions, while inhabitants reused Roman structures and materials.

Large monuments could become foundations for later construction or sources of building stone. Some areas became less densely occupied, while defensive requirements once again gained importance.

Nevertheless, continuity remained. People continued to live in Florence, trade, worship and use routes inherited from the ancient city.

The Gothic War and a Changing City

During the sixth century, Italy became the battlefield of the Gothic War between the Byzantine Empire and the Ostrogothic Kingdom.

The prolonged conflict damaged cities and disrupted political and economic networks across the peninsula. Florence experienced this wider instability as control shifted and institutions inherited from antiquity continued to fragment.

Later Lombard expansion transformed much of northern and central Italy. Florentia survived, but the society surrounding it had changed fundamentally.

The foundations of medieval Florence were gradually emerging.

How Roman Florence Became a Medieval City

The transition from Florentia to medieval Florence was gradual. No single event marks the moment when one city ended and the other began.

Ancient structures were reused, streets changed functions and Christian institutions acquired increasing importance. Political authority developed into forms entirely different from Roman municipal government.

Yet the compact Roman settlement continued to provide a framework for later growth. Certain streets survived because they remained useful, ancient foundations supported later buildings, and the former forum area continued to attract commercial activity.

As medieval Florence expanded, new defensive circuits enclosed increasingly large urban areas. Bridges connected growing neighbourhoods, while merchants and craftsmen prepared the economic foundations for the Medieval Republic of Florence.

Roman Florence and the Medieval City Walls

The expansion from Florentia into medieval Florence can also be read through the city’s successive defensive circuits.

The compact Roman settlement occupied only a fraction of the area eventually enclosed by medieval Florence. As population, commerce and political importance grew, new walls repeatedly incorporated suburbs that had developed beyond earlier boundaries.

This expansion eventually created the much larger fortified city associated with the medieval republic.

Our Florence City Walls and Fortresses guide follows this development through the later medieval circuits and the surviving gates visible today.

What Can You Still See of Roman Florence Today?

Florence does not display its Roman past as visibly as Rome, Verona or Pompeii. Much of ancient Florentia lies beneath later construction. Nevertheless, several places allow visitors to recognise the Roman city.

Piazza della Repubblica

The square occupies approximately the area of the Roman forum and provides the best starting point for imagining the civic centre of Florentia.

The Roman Street Grid

Streets around Piazza della Repubblica still preserve elements of the ancient urban orientation. Their regular pattern offers one of the most accessible traces of Roman planning.

Palazzo Vecchio

Archaeological remains beneath the palace preserve evidence of the Roman theatre and provide one of the most direct encounters with ancient Florentia.

Via Torta

The curved street preserves the outline of part of the ancient amphitheatre, demonstrating how Roman architecture continued to shape Florence after the monument itself disappeared.

Ponte Vecchio Area

The present bridge is medieval, but its position recalls the long history of crossing the Arno in approximately the same area.

Archaeological Collections

Objects discovered in Florence and elsewhere in Tuscany help reconstruct everyday Roman life. Archaeological collections therefore provide useful context for understanding the ancient city beyond the limited remains visible outdoors.

A Walk Through Roman Florence

A short walk through the historic centre can reveal much of the hidden structure of Florentia even when the ancient remains themselves are underground.

1. Begin at Piazza della Repubblica, approximately the location of the Roman forum.
2. Explore the surrounding streets and observe the regular orientation inherited partly from the Roman street grid.
3. Walk towards Palazzo Vecchio, beneath which survive remains of the ancient theatre.
4. Continue towards Via Torta and follow the curve created by the Roman amphitheatre.
5. Return towards the Arno and Ponte Vecchio, close to the historic crossing that connected Florentia with routes south of the river.

The entire route fits easily into a walk through central Florence. Roman history appears not as an isolated archaeological park but as a hidden layer beneath the living city.

Why Roman Florence Is Worth Exploring

Roman Florence is worth exploring because Florentia established several fundamental features of the later city. The Romans selected the location beside the Arno, organised the first regular urban plan and created a civic centre that continued to influence Florence for centuries.

More importantly, Florentia demonstrates how cities evolve through continuity. Medieval Florentines inherited streets, ruins, walls, foundations and routes from an ancient settlement and adapted them to new political, religious and economic needs.

The Renaissance transformed Florence again, while the nineteenth-century capital radically altered parts of the medieval city. Nevertheless, each new Florence developed partly from what came before.

Understanding Florentia therefore changes the way we experience modern Florence. Beneath Renaissance palaces and medieval towers lies another city – older and largely invisible, but still present in the streets beneath our feet.

Frequently Asked Questions About Roman Florence

What was Florence called in Roman times?

The city was known as Florentia. The name is generally associated with the Latin idea of flourishing or prosperity and eventually developed into the modern name Firenze.

When was Roman Florence founded?

Florentia is generally associated with the late Republican and early Augustan period, traditionally in the late first century BC. The precise circumstances and date remain subjects of historical discussion.

Was Florence an important Roman city?

Florentia was not comparable in scale or political importance with Rome, but it developed into a prosperous regional town with a forum, theatre, amphitheatre, baths and other characteristic elements of Roman urban life.

Where was the centre of Roman Florence?

The Roman forum occupied approximately the area of today’s Piazza della Repubblica, which remained an important commercial and urban centre during later periods.

Can you still see Roman ruins in Florence?

Yes, although much of Roman Florence remains beneath later buildings. Important archaeological evidence survives beneath Palazzo Vecchio, while Via Torta preserves the form of the ancient amphitheatre in the street plan.

Was Ponte Vecchio built by the Romans?

No. The present Ponte Vecchio is medieval. However, the area corresponds to a much older crossing point of the Arno associated with the routes serving Roman Florentia.

Why is Via Torta curved?

Its unusual route follows part of the outline of the ancient Roman amphitheatre. Medieval and later buildings gradually incorporated the footprint of the earlier monument.

What happened to Florentia after the Roman Empire?

The settlement survived. During late antiquity and the early Middle Ages, political institutions, religion, commerce and the urban landscape changed gradually while many Roman structures were reused or incorporated into later Florence.

Is Roman Florence worth exploring?

Yes. The Roman layer explains several features of the modern street plan and reveals that Florence’s history extends far beyond the Middle Ages and Renaissance.

Further Reading on Firenze Casa

Roman Florentia is the beginning of a much longer story. Continue exploring how Florence developed across later centuries:

• History of Florence – Complete Guide
• The Medieval Republic of Florence – Guilds, Power and Civic Life
• Guelphs and Ghibellines in Florence
• The Ciompi Revolt of 1378
• Florence City Walls and Fortresses
• Florence as Capital of Italy – Firenze Capitale 1865–1871
• Palazzo Vecchio – Florence’s Historic Seat of Government

References

• Comune di Firenze – Historical and Archaeological Resources on Roman Florentia
• Musei Civici Fiorentini – Archaeological Information on the Roman Theatre beneath Palazzo Vecchio
• Soprintendenza Archeologia, Belle Arti e Paesaggio – Archaeological Studies Concerning Ancient Florence
• Davidsohn, Robert – Storia di Firenze
• Villani, Giovanni – Nuova Cronica
• Historical and Archaeological Studies of Roman Florentia, Roman Tuscany and the Transition from Late Antiquity to the Early Middle Ages