A Construction Crew, a Button, and Two Thousand Frozen Soldiers
In the winter of 2001, a construction crew laying telecommunication cables on the northern edge of Vilnius punched through the topsoil and hit bone. The site was a former Soviet military base known as the Northern Town. The initial assumption was a crime scene — police were called, forensic bags prepared, the first remains shipped to the forensic medicine institute. Then someone found a button. It was brass, embossed with a regimental number, and unmistakably French.
Within days, the dig had expanded to reveal a ditch one hundred square meters wide and six meters deep, packed with the tangled remains of over two thousand soldiers. Some skeletons were locked in the fetal position — knees drawn to chests, arms crossed over stomachs — the posture of men who had frozen to death so quickly that the ice preserved the shape of their final agony. Others were missing boots, trousers, and coats, stripped by their own comrades in the last hours of consciousness. These were the soldiers of Napoleon's Grande Armée, and they had been lying beneath the suburbs of Vilnius for one hundred and eighty-nine years, waiting for someone to trip over them.
This is what Vilnius does. It buries things. Pagan kings under cathedrals. Monks under legends. Plague victims under streets. French conscripts under Soviet barracks. Every century adds another stratum of the dead, and every construction project in this city risks cracking open a chapter of the European story that someone had hoped was sealed shut.
The Pagan Cremation Ground Beneath Vilnius Cathedral
Šventaragis Valley and the Eternal Flame of Perkūnas
Long before the first stone of the cathedral was laid, the low valley where the rivers Neris and Vilnia meet was a cremation ground. According to Lithuanian chronicles, Duke Šventaragis — whose name translates roughly to "sacred horn" — established the site as the funerary heart of Lithuania's ruling class. He had hunted in these forests as a young man and considered the confluence sacred. Upon his death, his son Gerimantas fulfilled the command: he cut down the ancient oak grove, built a great square, and burned his father's body on a towering pyre in the presence of the Lithuanian nobility. The duke was cremated with his finest armor, his weapons, and his best garments. For over a century, every major Lithuanian ruler who died was carried to this valley and returned to the gods through fire.
The chronicler Maciej Stryjkowski, writing in 1582, elaborated that the valley housed a temple dedicated to Perkūnas, the thunder god, where an eternal flame burned before a stone idol, tended by priestesses called vaidilutės. In the temple's underground chambers, sacred serpents were kept and worshipped — the grass snake was not feared in Lithuanian pagan culture but revered as a messenger between the living and the dead. The entire complex — the fire, the serpents, the ash of kings — occupied the precise ground where Vilnius Cathedral stands today.
This is not metaphor. During restoration work in the 1980s, archaeologists Napaleonas Kitkauskas and Albertas Lisanka uncovered the remnants of a square stone structure beneath the cathedral floor, along with what they identified as the altars of a pagan temple and the original floor laid during the reign of King Mindaugas in the mid-thirteenth century. A fresco dating to the end of the fourteenth century — the oldest known in Lithuania — was found on the wall of one of the underground chapels. The academic debate over the structure's exact origins continues. The function of the ground itself is not in dispute. This was where Lithuania's rulers were burned, and the cathedral was built directly on their ashes.
The 1387 Baptism That Destroyed the Old Gods
Lithuania holds a singular distinction in European history: it was the last country on the continent to accept Christianity. The Grand Duchy, under rulers like Gediminas and Algirdas, stretched from the Baltic Sea to the Black Sea. They chose paganism deliberately, and the Teutonic Order spent two centuries trying to burn that choice out of them through the Northern Crusades — seasonal military raids called Reisen that amounted to organized campaigns of devastation against the Lithuanian lands.
In 1387, Grand Duke Jogaila ended it. To secure the Polish crown and marry Queen Jadwiga, he agreed to baptize the entire nation. He arrived in Vilnius with Polish clergy and the Archbishop of Gniezno. The Perkūnas temple was torn down. The sacred altars were smashed. The eternal flame, which had burned for generations, was extinguished. The serpents were killed. The statues of the goddesses were seized and drowned in the Neris. The ancient oak groves — the most sacred spaces in the Baltic pagan tradition — were felled with axes. According to oral tradition, the last great pagan priest, Gintautas, fled to the forests near Kaunas and lived out his remaining years in hiding, mourning the gods he had served until the end.
On the ground where the ashes of kings still lay in the soil, the foundations of the first Gothic cathedral were laid. A 1388 papal bull from Pope Urban VI confirmed that a pagan temple had been demolished and replaced with a Catholic church. Christianity did not replace paganism in Vilnius. It was built on top of it — literally, physically, stone upon ash.
The Franciscan Massacre on the Bald Hill
The conversion did not go quietly. The Bychowiec Chronicle records the most violent episode of resistance. Voivode Petras Goštautas, a Lithuanian noble who had married a Polish Catholic, invited fourteen Franciscan missionaries from Podolia to Vilnius. The friars built a monastery and began preaching — but they went further than the Gospel. They openly insulted the pagan gods.
In the 1360s, while Grand Duke Algirdas was away at war with Moscow and Goštautas was in Tykocin, the people of Vilnius assembled in a crowd and marched on the monastery. They burned it to the ground. Seven friars were beheaded. The other seven were nailed to wooden crosses and thrown into the Neris. The chronicle records the crowd's words: "You came from where the sun sets — now return to where the sun sets. Why did you destroy our gods?"
A separate source — De Conformitate Vitae, finished in 1390 — independently records the killing of five Franciscans in Vilnius: four cut down by swords, and the guardian of the friary partially dismembered and set adrift on the Neris in a small boat, still alive, drifting downstream to the territory of the Teutonic Knights. Historian S. C. Rowell has argued that the two accounts corroborate each other enough to confirm that the event occurred.
The hill where the executions took place — the Bald Hill, or Plikasis Kalnas — is today crowned by the Three Crosses monument, one of Vilnius's most recognizable landmarks. Wooden crosses were first erected in the early seventeenth century. They rotted, were replaced, collapsed in 1869. Tsarist authorities forbade their reconstruction. A reinforced concrete monument designed by Antanas Vivulskis was erected in 1916 during the German occupation. The Soviets demolished it in 1950. It was rebuilt again in 1989, during the Lithuanian independence movement, on the original foundations. The monument has been destroyed and resurrected almost as many times as the belief systems it commemorates.
The Plagues That Killed Half of Vilnius — Twice
The 1657 Plague Under Muscovite Occupation
The plague that broke out in Vilnius at the end of May 1657 arrived in a city already on its knees. Two years earlier, Muscovite forces had taken Vilnius and plundered it with such violence that fires burned across the city for over two weeks. When Tsar Alexis finally entered, the destruction was so complete that he was forced to sleep in a tent. Famine swept through the survivors. Wealthy citizens fled to Kėdainiai, to Königsberg, anywhere. Those who stayed nailed their windows shut and barred their doors — which did nothing to stop the soldiers, peasants, and desperate locals who broke in to loot whatever remained.
Most municipal officials fled when the plague struck. The city elected a plague administration led by Józef Kairelewicz, the wójt of Vilnius. His duties included collecting valuables from the dead and storing them in a dedicated warehouse, maintaining the executioner, and managing the special carter who hauled corpses out of the city. A disinfection protocol was established at the Rūdninkai Gate: every person entering or leaving was forced to stand beside a bonfire and be "smoked" for several minutes, the prevailing belief being that smoke killed plague. Letters sent out of Vilnius were also treated with smoke and then rewritten entirely by a second scribe to minimize the risk of contamination. Wills had to be dictated from one room while the notary sat in another — the dying and the recording separated by a wall.
The plague raged for roughly a year. When it subsided in 1658, city officials wrote to the Muscovite tsar that Vilnius had lost half its population — perhaps ten thousand souls, including Kairelewicz himself. Among the dead was a Russian soldier who, with full knowledge that a man had died of plague, stole the dead man's trousers. He was dead within days. No chronicle explains why he considered the trousers worth his life.
In Lithuanian folk belief, the survival of which long predated and outlasted this outbreak, the pagan death goddess Giltinė — a skeletal figure in a white cloak with a long venomous tongue who collected poison from the dead — was accompanied by helpers called Maro deivės, plague goddesses who rode white horses through afflicted towns. One of Giltinė's own folk names was Maras: Black Death. The old gods, drowned in the Neris two centuries earlier, had never truly left.
The Great Northern War Plague of 1710
The 1657 outbreak was catastrophic. The plague of the Great Northern War was worse. Between 1709 and 1713, bubonic plague ravaged Vilnius and killed between twenty-three thousand and thirty-three thousand people in 1709 and 1710 alone. Across Lithuania as a whole, roughly half the population — approximately ninety-five thousand out of one hundred and ninety thousand — perished in 1710 and 1711. As the countryside was devastated by hunger and disease, refugees flooded into Vilnius seeking shelter and found more plague instead.
Hundreds of healthy Vilnians packed into the Church of Saints Peter and Paul — a masterpiece of Lithuanian Baroque — to pray before a painting of the Blessed Virgin Mary. The icon was a copy of an image from the Italian town of Faenza, which had supposedly saved that city from plague in 1412. The painting, showing the Holy Mother holding several broken arrows, still hangs in the church today. It did not save Vilnius.
Napoleon's Frozen Army in the Mass Graves of Vilnius
The Retreat from Moscow and the Death March to Vilnius
In June 1812, Napoleon's Grande Armée crossed the Neris on its way to Moscow, roughly four hundred thousand men strong. Vilnius, then part of the Russian Empire, was sympathetic — many Lithuanians associated Napoleon with the hope of restoring independence lost to Russian annexation in 1795. The city became a strategic waypoint and supply hub.
After the catastrophe in Moscow and the nightmare crossing of the Berezina River, approximately seventy thousand survivors staggered into Vilnius in early December 1812. They arrived starving, frostbitten, riddled with disease, and psychologically shattered. The temperature was thirty-five degrees below zero. Within days, over thirty thousand of them were dead — from cold, from exhaustion, from typhus, from starvation. According to some accounts, soldiers broke into the medical school of the University of Vilnius and ate the alcohol-preserved organs kept in jars for anatomy students. They were that desperate.
The Russians disposed of the dead with efficiency. The frozen corpses — many still locked in the fetal position of hypothermic death — were thrown into the defensive trenches that the French themselves had dug when they first occupied the city six months earlier. The Latin title of one academic study on the site captures the symmetry: Inciderunt itaque in fossam quam sibi ipsi fecerunt — "They fell into the pit they dug for themselves."
The 2001 Discovery and the DNA of a Dying Army
The mass grave lay undisturbed for one hundred and eighty-nine years. The Soviet Union built a military base on top of it. When the construction crew broke through in 2001, Vilnius University anthropologist Rimantas Jankauskas co-directed the excavation with a French team from Marseille University. The grave was the largest intact Napoleonic mass burial ever found — at least two thousand skeletons, with estimates suggesting only a tenth of the total had been excavated. The soldiers were male, mostly between the ages of fifteen and twenty-five. Some were found alongside women, whose role in the campaign remains debated. Hundreds of horse bones were mixed with the human remains.
A 2006 DNA study on teeth from thirty-five soldiers identified the pathogens behind typhus and trench fever. A 2025 study published in Current Biology extracted DNA from thirteen additional soldiers and found evidence of paratyphoid fever and louse-borne relapsing fever — diseases with different transmission routes, confirming that the soldiers had not died of a single epidemic but of a cocktail of infections circulating simultaneously through a weakened, starving army. The lead researcher, Nicolás Rascovan of the Institut Pasteur in Paris, noted that the co-occurrence of pathogens underscored how dire the sanitary conditions had been.
The remains were eventually reburied with military honors at Vilnius's Antakalnis Cemetery, alongside Lithuanian national heroes. Nearly two centuries after they were dumped into their own ditches, the soldiers of the Grande Armée were given a funeral.
What Lies Beneath Vilnius Today
Cathedral Square, the bright and open heart of modern Vilnius, sits on a pagan cremation ground where kings were burned and serpents worshipped. The Three Crosses on the Bald Hill mark the spot where Franciscan monks were nailed to crosses for insulting the old gods. The Church of Saints Peter and Paul, visited for its two thousand baroque stucco figures, is where terrified citizens gathered to pray during the plague. The residential blocks of the northern suburbs sit above the frozen dead of Napoleon's army.
The ground keeps yielding its secrets. A medieval plague cemetery was accidentally discovered during a separate construction project, and DNA analysis of its skeletons confirmed not only bubonic plague but also a case of yaws — a tropical disease related to syphilis — in a fifteenth-century Lithuanian woman, a finding that rewrote part of the epidemiological history of Europe.
The pagan past has not been fully buried either. The contemporary Lithuanian pagan movement, Romuva, considers Cathedral Square — the Šventaragis Valley — its most sacred site. Their ceremonies there have drawn direct opposition from the Catholic Church. The Romuva high priest has stated publicly that the Šventaragis Valley belongs to all Lithuanians, not only to Catholics. The Archbishop of Vilnius has described their activities as offensive to believers. Seven centuries after the baptism, the question of who owns this ground — and whose dead lie beneath it — is still being argued.
Vilnius is not a ruin. It is not abandoned. It is a living city built on a vertical graveyard, where every layer of soil contains a different civilization's dead, and where the act of digging a foundation can unearth a war, a plague, or a god that someone tried to kill six hundred years ago.
Atlas Entry
What: Vilnius — the last pagan capital of Europe, where the cremation ashes of Grand Dukes lie beneath the cathedral, Franciscan monks were massacred for insulting the old gods, plague killed tens of thousands twice in fifty years, and Napoleon's frozen army was buried in its own trenches.
Where: Vilnius, Lithuania. Key sites include Cathedral Square and Šventaragis Valley (the original pagan cremation ground), the Hill of Three Crosses (site of the Franciscan martyrdom), the Church of Saints Peter and Paul (where citizens prayed during the 1710 plague), and Antakalnis Cemetery (where the reburied Napoleonic soldiers rest).
When to Visit: Year-round. Winter (December–February) provides the most atmospherically relevant conditions — short days, freezing temperatures, and the same cold that killed thirty thousand of Napoleon's soldiers in December 1812.
What to Know: The cathedral crypts are open to visitors and contain the remains of Grand Dukes, queens, and bishops, with a basement exhibition tracing the site from pagan temple to present day. The Three Crosses hill is a short, steep hike from Cathedral Square. The Church of Saints Peter and Paul is free to enter and still displays the plague-era painting of the Virgin Mary with broken arrows. Antakalnis Cemetery is a short bus ride from the center.
Current Status: Vilnius's Old Town is a UNESCO World Heritage Site. The cathedral functions as an active place of worship and archaeological museum. The contemporary pagan movement Romuva continues to hold ceremonies at Cathedral Square, maintaining an active and contentious claim to the ground beneath Europe's newest and oldest spiritual fault line.
Frequently Asked Questions
What was Vilnius like before Christianity?
Vilnius was the capital of a pagan state — the Grand Duchy of Lithuania — that stretched from the Baltic Sea to the Black Sea. The valley where the cathedral now stands was a sacred cremation ground where Grand Dukes were burned on pyres with their weapons and armor. A temple to Perkūnas, the thunder god, is believed to have stood on the same site, tended by priestesses who maintained an eternal flame. Lithuania was the last European country to accept Christianity, converting officially in 1387 when Grand Duke Jogaila ordered the destruction of pagan temples and sacred groves as a condition of his marriage to the Polish Queen Jadwiga.
What happened to the Franciscan monks in Vilnius?
According to the Bychowiec Chronicle, fourteen Franciscan friars were invited to Vilnius in the 1360s by a Catholic-convert noble. They began preaching and openly insulting the pagan gods. While the Grand Duke was away at war, residents burned their monastery, beheaded seven friars, and nailed the other seven to crosses before throwing them into the Neris River. A separate contemporary source corroborates the killing. The Three Crosses monument on the Bald Hill in Vilnius commemorates this event, and the monument itself has been repeatedly destroyed and rebuilt — by decay, by the Russian Empire, by the Soviet Union, and by the Lithuanian independence movement.
How many people died in the Vilnius plagues?
Vilnius was devastated by plague at least twice. The 1657 outbreak, which struck during the Muscovite occupation, killed approximately half the city's population — an estimated ten thousand people. The Great Northern War plague of 1709–1713 was far worse, killing between 23,000 and 33,700 people in the city in 1709 and 1710 alone. Across Lithuania as a whole, roughly half the total population of 190,000 perished in 1710 and 1711.
Where is the Napoleonic mass grave in Vilnius?
The mass grave was discovered in 2001 at a construction site in northern Vilnius, on the grounds of a former Soviet military base known as the Northern Town (Šiaurės Miestelis). The site contained the remains of at least 2,000 soldiers from Napoleon's Grande Armée who died during the retreat from Moscow in December 1812. The remains were later reburied with military honors at Antakalnis Cemetery. Researchers believe only about a tenth of the total burial was excavated, and additional graves likely remain in the area.
What is beneath Vilnius Cathedral?
Beneath the present-day cathedral lie the archaeological remains of multiple earlier structures, including what is believed to be a thirteenth-century church built during the reign of King Mindaugas, the altars of a pagan temple, and the oldest known fresco in Lithuania, dating to the late fourteenth century. The site sits on the Šventaragis Valley, the legendary cremation ground of Lithuania's pagan Grand Dukes. The cathedral crypts are accessible to visitors and contain the tombs of Grand Dukes, queens, and bishops of the Grand Duchy of Lithuania.
Is there still a pagan movement in Vilnius?
Romuva, a contemporary Lithuanian pagan movement seeking to revive pre-Christian Baltic religion, considers Cathedral Square and the Šventaragis Valley its most sacred site. The movement holds ceremonies in the area, which has generated public tension with the Catholic Church. The question of whether the site belongs primarily to Catholic heritage or to a broader Lithuanian spiritual identity predating Christianity remains a live cultural debate.
Sources
- [The 1657–1658 Plague and Other Strokes of Fate for Vilnius] - Orbis Lituaniae, Vilnius University (2021)
- [Discovery of a Mass Grave of Napoleonic Period in Lithuania (1812, Vilnius)] - M. Signoli et al., Comptes Rendus Palevol, Académie des Sciences (2004)
- [Mass Grave of Napoleon's Soldiers in Vilnius, December 1812] - Rimantas Jankauskas, Revue des Études Slaves (2012)
- [DNA from Mass Grave Reveals Pathogens That Beset Napoleon's Army in 1812] - Nicolás Rascovan et al., Current Biology (2025)
- [Who Owns the Heart of Vilnius? Pagans, Catholics, and Contested National Religious Heritage] - ResearchGate (2022)
- [Franciscan Martyrs of Vilnius] - S. C. Rowell, Historical Analysis (referenced via Bychowiec Chronicle and De Conformitate Vitae)
- [Franciscans, the First Archaeologists in Vilnius] - Orbis Lituaniae, Vilnius University (2021)
- [Great Northern War Plague Outbreak] - Historical Record, Multiple Sources (1702–1712)
- [Digging Napoleon's Dead] - Jarrett A. Lobell, Archaeology Magazine (2002)
- [Tropical Disease in Medieval Europe Revises the History of a Pathogen Related to Syphilis] - Vilnius University / Max Planck Institute, Scientific Reports (2020)
