Poreč (called Parentium in Latin and Parenzo in Italian) is a town on the western coast of the Istrian peninsula. The historic core itself occupies a small peninsula and stands out as one of the most intriguing historic settlements in Istria. The town’s long and layered past is reflected in its Roman and Byzantine architectural heritage, as well as in the enduring imprint left by centuries of Venetian rule. What makes Poreč so distinctive, and why is part of it protected by UNESCO?
FROM PREHISTORY TO ROMAN TIMES: THE RISE OF PARENTIUM
Long before Poreč became one of Istria’s beloved tourist destinations, the peninsula was already a place of strategic importance. Archaeological evidence confirms that the first fortified settlement on the Poreč peninsula emerged as early as the Bronze Age (c. 2500 / 2300 – 1100 BCE). Life continued there through the Iron Age (c. 11th – 2nd century BCE), when the area was dominated by the Histri, a people recorded under that name by Greek and Roman writers and from whom the largest peninsula of Istria takes its name. Renowned as highly skilled seafarers, but also notorious pirates, the Histri came into conflict with the Romans, who launched an attack against them in 221 BC.
Written sources reveal little about Histrian-Roman relations over the following four decades. The next major confrontation came with what is known as the Second Histrian War (178–177 BC), after which the whole of Istria fell under Roman rule. From that point onwards, the Histri gradually retreated into the interior, while the Romans consolidated their presence along the coast. Wherever they found suitable natural harbours, they established fortified centres with both military and commercial functions, enabling a safer and more efficient flow of goods around the Adriatic and further to the Mediterranean. In time, these strongholds developed into settlements of Roman citizens, and one of them was Poreč, known in antiquity as Parentium.
Roman architectural remains on Marafor, the square of Poreč (source: https://arheon.net/).
Alongside Pola (modern-day Pula) and Tergeste (modern-day Trieste), Parentium grew into one of the most important Roman strongholds in Istria. At the beginning of the 1st century AD, it was granted the status of a Roman colony and officially bore the name Colonia Iulia Parentium. This brought the town significant advantages. It functioned as a military outpost, a centre of Romanization, and an economic hub, offering stability and resources to Roman settlers who could also participate in Roman political life. Equally important to the town’s development was the fertile surrounding countryside (ager in Latin), which created excellent conditions for agriculture, particularly the cultivation of olives and grapevines.
The Romans organised Parentium according to the standard principles of colonial urban planning, based on an orthogonal street grid enclosed within the town walls. Its streets ran east to west and, as in other ancient Roman towns, were known as decumani. These were intersected at right angles by the cardines, which ran north to south. This urban structure remains clearly legible even today. The modern street, still bearing the ancient name Decumanus, follows to a large extent the route of the former main Roman street, the Decumanus Maximus. By contrast, almost nothing of Poreč’s ancient defensive walls has survived.
The main square of Parentium, its forum, stood at the western end of the decumanus, at the tip of the peninsula itself. Today, this area is known as Marafor. Later building activity and layers of development have made archaeological investigation especially challenging, yet it is known that the Roman forum was square in shape and that a temple once rose there. A first-century inscription from Parentium, dedicated to the god Neptune, informs us that a man named Titus Abudius Verus carried out numerous benefactions for the town. Among other things, he restored the temple and built piers. Today, the inscription is preserved in the Poreč Heritage Museum, where it stands among many other remarkable Roman objects that make a visit especially rewarding.
The inscription of Titus Abudius Verus, who restored Parentium’s temple and built piers (source: https://lupa.at/)
THE CHRISTIAN TRANSFORMATION OF PARENTIUM AND A GLORIOUS EUPHRASIAN BASILICA
A new chapter in the history of Roman Parentium began with the arrival of Christianity. By the late 3rd AD, the town had already become the seat of a bishop. At that time, however, Christianity was still illegal, so the local Christian community concealed its place of worship within a Roman house near the town gates. These were difficult years for Christians. During the reign of Emperor Diocletian (285 – 305 AD), a fierce persecutor of Christians, Parentium's bishop Maurus also met a tragic fate and was most likely executed in AD 304. For this reason, the aforementioned early church is known as Maurus’s Oratory, and parts of its floor mosaics can still be seen today.
After Christianity was legalised by the Edict of Milan in AD 313, the church was gradually enlarged and became a repository for the relics of local martyrs. In the 5th century, a large three-aisled basilica of rectangular plan was built on the same site. When Istria came under the rule of the Eastern Roman Empire during Justinian’s reconquest (535 – 554 AD), Parentium entered another period of prosperity. In the mid-6th century, Bishop Euphrasius commissioned the construction of the magnificent Episcopal complex of the Euphrasian Basilica, which remains to this day the most celebrated Early Christian monument in Croatia.
Mosaic-adorned entrance portal of the Euphrasian Basilica.
The entire complex consists of several buildings - a baptistery, the bishop’s residence, and a tri-conch chapel, yet at its heart stands the magnificent Euphrasian Basilica. It is the best-preserved monument of Byzantine art in Croatia and ranks among the earliest examples of three-aisled and triple-apsed churches in Europe. The basilica is distinguished by the richness of its architectural decoration: columns with elaborate capitals, arches adorned with stucco, and finely crafted altar screens. They all testify to the exceptional artistic quality of its construction.
The courtyard and iconic bell tower of the Euphrasian Basilica UNESCO site.
The Basilica’s most precious and best-preserved feature, however, is the wall mosaic in the central apse, a masterpiece of 6th-century mosaic art. It depicts the apostles with Christ, and below them the Virgin Mary holding the Christ Child on her lap, surrounded by angels and saints. Particularly striking are Euphrasius, shown holding a model of the church, and Maurus, bishop and martyr. Along the edge of the triumphal arch runs a series of circular medallions with figures of female martyrs and the Lamb of God.
The central apse mosaic depicts the Virgin Mary holding the Christ Child on her lap, while Euphrasius and Saint Maurus appear in the left corner (source: Wikimedia Commons/ Josep Renalias)
The side mosaics present remarkable scenes: the Annunciation and the Visitation. The latter is especially rare in artistic terms, as it shows the Blessed Virgin Mary pregnant at the moment she meets Elizabeth. Thanks to its extraordinary mosaics, remarkable architecture, and rich historical layers, the Euphrasian complex represents the pinnacle of 6th-century sacred art. For this reason, it was inscribed on the UNESCO World Heritage List in 1997.
Detail of the mosaic above the apse showing Jesus Christ and the Apostles (source: Wikimedia Commons / Thaler Tamas).
The construction of the Episcopal complex of the Euphrasian Basilica also marked the final great phase of building activity in ancient Parentium. What followed was a difficult century, not only for Poreč, but for the Mediterranean world as a whole.
THE FRANKISH RULE
The end of Antiquity ushered in difficult centuries for Istria. Much of the peninsula was devastated during the Great Migration Period (c. 370–600 AD), and only the coastal towns managed to preserve a degree of continuity. The wider Poreč region also suffered, while the newly arrived Croats settled first in the hilly interior of Istria and gradually made their way toward the coast along the river valleys. Still pagan, they were regarded as a serious threat to the Christian communities. For this reason, in 641 Pope John IV sent Abbot Martin to Istria and Dalmatia to collect the precious relics of local martyrs, including those of Bishop Maurus, which were subsequently taken from Poreč to Rome.
Detail of the mosaic showing Saint Maurus holding a crown and an angel (source: https://www.ppmi.hr/hr/).
The 8th century was a restless and fast-changing time in Istria. Power shifted quickly from the Lombards to Byzantium and finally to the Franks. It was the Franks, however, who succeeded in establishing more lasting control under Charlemagne, whose vast realm included Istria and, with it, Poreč. This was also the time when the feudal system began to take root in the region. Poreč appears in the Placitum of Riziano, one of the most important documents for the early medieval history of Istria. The text records an assembly held in 804 by Charlemagne and his son Pippin to settle growing disputes among the people of Istria, who had become increasingly unhappy after the region passed from Byzantine to Frankish rule. The document also reveals Poreč’s remarkable economic strength. Together with Pula, it stood at the top among Istrian towns, having paid 66 gold coins to the Frankish lords.
POREČ IN THE HIGH MEDIEVAL AGES
Relatively little information has survived about events in Poreč during the centuries that followed. From the scarce sources available, we know that the town was occasionally attacked by the Croats, who were resisting Venetian influence in the northern Adriatic. Around the year 1000, the Venetian Doge Pietro II Orseolo also arrived in Poreč and, on that occasion, visited the town’s basilica. Poreč was also mentioned by the celebrated Arab geographer Abu Abdallah Muhammad al-Idrisi, who travelled through Istria in the 12th century. He recorded that the town was well populated, prosperous, and equipped with numerous ships.
Yet the following century brought a very different set of circumstances. The 13th century was marked by struggles between the town’s secular authorities, the feudal lords, and the Bishop of Poreč. At the heart of the dispute was the claim of the ecclesiastical authorities that they were the rightful lords of all the land belonging to Poreč. The forgery known as the Privilege of Euphrasius emerged, a document asserting that all the land belonged to the bishopric. Very little of the architectural heritage from this period has survived, yet several monuments still stand out: the churches of St Thomas and St Francis, the Franciscan monastery, the Canonica and the Romanesque House, a two-storey house located in the immediate vicinity of Marafor Square. The latter two buildings belong to the finest preserved example of public and private Romanesque architecture in Istria.
The Romanesque House close to Marafor Square (source: https://muzejporec.hr/).
A VENETIAN TOWN IN AN AGE OF CALAMITY: THE SCARS OF PLAGUE
This serious conflict between secular and ecclesiastical powers led the town’s leading families to draw closer to the Republic of Venice, from which they sought political support. In 1267, Poreč became the first town in Istria to join the Venetian Republic. This new political alignment was followed by important building works. The Palace of the Venetian governor was constructed, and around it a square, framed by public buildings such as the loggia, the law court, and other civic structures. Together, these formed the centre of medieval urban life in Poreč.
But the pact with Venice also brought political difficulties. In the mid-14th century, the town was attacked by the fleet of Genoa, Venice’s bitter maritime rival. Poreč suffered a devastating blow - it was plundered and laid waste, and it would take more than a century to recover from the damage. During this campaign, the relics of St Maurus and St Eleutherius were taken from the Euphrasian Basilica. They were kept in the abbey church of St Matthew in Genoa until 1934, when the Genoese D’Oria family returned them to the basilica in Poreč. Other calamities soon followed. In the 1360s, the town was struck by its first outbreak of plague, while the 15th century brought a major earthquake that caused further destruction, including the partial collapse of the southern side of the Euphrasian Basilica.
A brief period of recovery began in the 1440s, when a decree of the Venetian Senate designated Poreč and Rovinj as permanent bases for Istrian maritime pilots. This marked the beginning of renewed construction and restoration. The town towers were rebuilt, the walls were strengthened once more, and a number of elegant Gothic palaces were erected, particularly in the central part of the town. Among the finest surviving examples are the Zuccato Palace, the Manzin Palace, and the Fontik (in Italian: Fondaco).
The first known depiction of Poreč in the travel account of canon Bernhard von Breydenbach, Opusculum sanctarum Peregrinationum in Terram Sanctam. Created by the Utrecht-born artist Erhard Reuwich in 1486 (source: https://www.ppmi.hr//).
Yet the renewed fortification of the town had serious consequences for urban hygiene. Three major outbreaks of plague took a terrible toll. It was not only the townspeople who fled, but even the Venetian governor of Poreč. Records show that the Bishop of Poreč had to urge priests not to abandon the dying and not to leave them without comfort in their final hours. Nor was it only the town itself that suffered - entire settlements across the Poreč region were devastated. The scale of the catastrophe is clear from the numbers alone. In 1580, Poreč had just over 500 inhabitants, five times fewer than in the 15th century. Only fifty years later (c. 1630), according to some records, the town had barely 30 residents! Travelling through Istria in the mid-17th century, Giacomo Filippo Tommasini, the bishop of nearby Istrian town of Novigrad, described Poreč as a ghost town. He wrote:
This unhappy and abandoned town of Poreč, once praised by the writers of old, has fine streets lined with houses that were solidly built and made of beautifully cut stone. All this speaks of the wealth of its former inhabitants. Now these houses stand in ruins, or threaten to collapse, causing dismay to those who enter the town.
Print depicting Poreč, 16th century (G. Braun and F. Hogenberg) (source: http://www.klub-susacana.hr/).
RECOVERY AND RENEWAL
The town’s recovery was closely linked to the major conflict Venice fought against the Ottoman Empire on the island of Crete between 1645 and 1669. At the height of the war, large numbers of refugees from Crete, especially from the city of Candia, were resettled in Poreč by decree of the Venetian authorities. To accommodate them, the Venetian Senate ordered the construction and restoration of sixty houses. They were also granted land in the surrounding countryside for cultivation, and by 1675 the population of the town had risen to 700. With the arrival of Cretan families, the town began to come to life once more.
In the following century, Poreč entered a phase of renewal. Town palaces were built, while the Franciscan monastery complex was restored and given a new Baroque appearance. The line of the town walls, which followed the natural contours of the peninsula, had remained largely unchanged since Roman times. In the 18th century, however, they began to be gradually dismantled. This marked an important turning point, as the town increasingly opened itself towards the sea and its harbour. From then on, the southern side of Poreč became the centre of urban life, a role it would retain in the centuries that followed.
POREČ UNDER THE AUSTRIAN RULE
After the fall of the Venetian Republic in 1797, Austrian rule was established all over Istria. What followed was a politically unsettled period marked by several changes of administration. In 1806, Poreč came under Napoleonic rule, which lasted until 1813, when Austrian authority was restored in Istria for a second time.
During the 19th century, the town gradually strengthened its political, cultural, and social profile. Urban life in Poreč was largely shaped by its Italian population. In 1861, Poreč became the administrative centre of the Margraviate of Istria and the seat of the Istrian Provincial Diet. On that occasion, the disused Franciscan church was converted into a two-storey building, with its upper floor serving as the assembly hall.
The interior of the Istrian Assembly Hall in Poreč (source: https://www.myporec.com/hr/).
The Austrian period also brought significant improvements to everyday urban life. The important impetus to the town’s cultural life came in 1884, when the Istrian Society for Archaeology and Homeland History was founded. In the same year, Poreč also became home to the first museum in Istria, the Provincial Archaeological Museum (Museo archeologico provinciale). At the turn of the 20th century, the town continued to develop both as a transport hub and as a tourist destination. In 1902, the narrow-gauge railway connecting Trieste and Poreč was introduced, the line known as the Parenzana. Today, part of its former route, stretching from the Italy–Slovenia border crossing to Poreč, has been transformed into a walking and cycling trail.
Restored 1908 narrow-gauge steam locomotive model U.37, displayed as a monument on a short track in Koper, Slovenia (source: Wikipedia Commons / Kiki273).
The 19th and early 20th centuries also brought noticeable changes to the shape of the Poreč peninsula itself. These were most evident on its southern side, where land reclamation altered the coastline. The remaining stretches of the old walls were removed, and a road was built around the tip of the peninsula. By infilling the shoreline from the old harbour to the very end of the headland, the peninsula acquired its present form, including the regular quadrangular projection at its south-western edge. It was there, in 1910, that Poreč’s first hotel, known as Hotel Riviera, was built. At the same time, the town increasingly expanded eastwards beyond its former walls.
A DIFFICULT PART OF THE 20th CENTURY: WORLD WARS AND EXODUS
The outbreak of the First World War (1914) brought a series of urgent problems to Poreč. After Italy entered the war on the side of the Entente in 1915, the Austrian authorities grew deeply suspicious of Italians who held Austrian citizenship. Contemporary sources mention frequent arrests and internments on the grounds of “political unreliability”. Food shortages, hunger, poverty, and social unrest became part of everyday life. Since Austrians designated Poreč as the site of a seaplane station, the town began to endure repeated aerial and naval attacks.
Following the conclusions of the secret Treaty of London (1915) between Italy and the Entente powers, Italian military units entered Poreč in the closing stages of the war. Formally, however, Istria became part of the Kingdom of Italy only after the Treaty of Rapallo in 1920. By then, Poreč had slipped into the background, as Pula became the capital of the newly established Italian province of Istria. Unlike the interior of the peninsula, where the Croatian population predominated, the Istrian coastal towns were largely Italian in ethnic composition. Their inhabitants closely followed political developments in Italy, and Poreč soon became a centre of support for Fascist politics.
A 1938 aerial photograph of Poreč (M. Visintini) (source: https://porestina.info/).
THE RISE OF MODERN POREČ
The rebuilding of the devastated town began within the framework of the new Yugoslav state. During the 1950s and 1960s, tourism gradually emerged as the most important branch of the local economy. This development left a lasting mark on life in Poreč and its surrounding area, while also stimulating other sectors, particularly the market of traditional Istrian agricultural products. After a peaceful period that lasted until the end of the 1980s, tourism in the Poreč region experienced a brief decline between 1990 and 1995 as a consequence of the Croatian War of Independence. This downturn, however, proved only temporary. It was followed by a new phase of growth, during which Poreč once again strengthened its tourist appeal and broadened its offer. A major international recognition came as early as 1997, when the Episcopal Complex of the Euphrasian Basilica was inscribed on the UNESCO World Heritage List.
Poreč is a striking place where many layers of history remain vividly visible, revealing the interplay of the different cultures that have shaped its identity over the centuries. Its multicultural character and rich heritage are reflected not only in its architecture, but also in traditions of diverse origin. Among these, perhaps the best known is La mula di Parenzo, a song that preserves the memory of a time when Poreč was shaped by a distinctly Venetian-Italian identity. This charming melody has also been associated with the final night of Ernest Hemingway’s life, but the full story is one best uncovered in the town itself.
Unlike Brijuni, an archipelago known for its wealth of natural, archaeological and historical treasures, Poreč offers a different perspective on Istria’s rich heritage as a vibrant urban centre with layers of history woven into everyday life. Any meaningful cultural encounter with Istria is almost unthinkable without a visit to Poreč. The town awaits you this autumn as one of the highlights of our journey through Istria.
You can explore Poreč with one of our expert guides on our Exploring Istria: A Cultural and Gastronomic Paradise tour.
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