The Charterhouse plague cemetery

Place card

Place: Charterhouse Square and the medieval West Smithfield cemetery, an emergency burial ground established beyond London’s wall during the Black Death. The modern garden covers only part of the historical landscape, and the cemetery’s precise boundaries remain unknown.

Address: The Charterhouse, Charterhouse Square, London EC1M 6AN.

Nearest station: Barbican; Farringdon is also convenient.

Period: the emergency cemetery was founded in 1348–49; later burials probably belong to the 1361 plague and an outbreak in the fifteenth century; a Carthusian monastery was founded beside it in 1371; Crossrail excavations and analysis took place in 2013–15.

Themes: Black Death; a city under mass mortality; dignified burial; medieval administration; Walter Manny; prayer for the dead; archaeology; osteology; ancient DNA; infrastructure as a window into the past; the myth of the chaotic “plague pit”; ethics of displaying human remains.

Access: entry to the museum display and chapel depends on the current Charterhouse schedule; the historic rooms are visited on ticketed tours. The enclosed Charterhouse Square garden is normally open to the public from Tuesday to Sunday, but check the official website before filming. Commercial photography requires permission. The Charterhouse remains an almshouse and a home: do not film residents without consent or turn a quiet living community into a horror set.

The setting

March 2013. Beneath the western roadway of Charterhouse Square, Crossrail is preparing a shaft for ground-treatment works. Only metres from offices, St Bartholomew’s Hospital and modern traffic, archaeologists see human bone.

One skeleton lies extended on its back, aligned like a Christian burial. Another appears nearby, then another. Twenty-five people will eventually be revealed inside this small working area.

The newspaper image seems ready-made: a “plague pit beneath London.” The soil tells a different story. There is no disordered heap. Individuals were placed in separate graves and arranged in rows. Decades divide some of the burials. Bone alone cannot display the word plague, because the disease normally kills too quickly to leave a distinctive skeletal lesion. Answers have to be sought in teeth, isotopes, pottery and radiocarbon.

Four of twelve sampled individuals will yield molecular evidence of Yersinia pestis. Dating will reveal at least three periods of use. The Crossrail shaft becomes a narrow window not onto one apocalyptic night, but onto a century in which epidemic disease repeatedly returned.

The strongest Charterhouse story is not that horror is “hidden” beneath a pretty garden. It is that people surrounded by catastrophe continued to treat the dead as people. They acquired land, consecrated it, dug individual graves, built a chapel and maintained memory through prayer.

The story

London before the disaster

Mid-fourteenth-century London was close, noisy and continuously mobile. People, animals, grain, cloth and waste moved through the river, gates and markets. Beyond the defensive wall stood fields, roads, hospitals and religious properties. Smithfield was both a market and a broad open zone beside the City’s north-western edge.

The pandemic later known as the Black Death approached England along human and commercial networks. Archaeogenomics identifies the disease with the bacterium Yersinia pestis and places the ancestral pandemic branch in central Eurasia. It reached London near the end of 1348. Medieval Londoners did not know about bacteria, genomes or modern vector biology. They interpreted pestilence through religion, corrupted air, celestial movement and moral order. They could nevertheless see its practical effect: familiar parish burial grounds could no longer cope.

Precise London mortality is disputed. Later accounts give totals of tens of thousands, sometimes even a hundred thousand people buried near Smithfield. Such numbers cannot be directly verified and can exceed reasonable estimates of the whole population. The chronicler Robert of Avesbury wrote that more than two hundred bodies were being carried to the cemetery each day during the worst period. His account communicates intensity; it is not a surviving spreadsheet of registered burials.

A script should therefore avoid the claim that “exactly fifty thousand people lie here.” Archaeologists have examined a tiny proportion of the land, the cemetery limits remain unresolved, and written estimates contradict one another. The emergency cemetery and the extraordinary pressure on the burial system are secure facts. Its total population is a calculation, not a count.

Walter Manny’s ground

In 1348, Walter Manny, a soldier and courtier of Edward III, leased land beyond the City boundary from St Bartholomew’s Hospital. The area, known as Spital Croft, was set aside for people dying during the epidemic. It became the West Smithfield cemetery.

Manny is sometimes presented only as a generous benefactor who suddenly appears holding the solution to a civic problem. His position was more complicated. He was a professional warrior, a participant in Edward III’s campaigns and a wealthy, influential man at court. Medieval pious patronage could assist the city, create an institution of prayer and protect the patron’s own posthumous memory at the same time. Those motives were not mutually exclusive.

A chapel was constructed near the graves so that priests could pray for the dead. The place became known as New Church Haw. Within medieval Christianity, burial in consecrated earth and prayer for the soul were not decorative additions. When the epidemic prevented families from completing ordinary rites, an authorised cemetery restored at least a measure of order.

It would be anachronistic to say that Manny designed a quarantine programme according to modern germ theory. A large extra-mural site eased the burden on urban churchyards and used available open ground. Separation from densely inhabited streets may have had practical effects, but no one involved was following a bacteriological model. The response was religious, administrative and logistical all at once.

Not a pit, but a burial system at work

The phrase “plague pit” produces a familiar picture: an open trench into which anonymous bodies are thrown on top of each other. Large emergency trenches are known at some cemeteries, including East Smithfield. The archaeology at Charterhouse Square reveals a different form of organisation.

The twenty-five people excavated in the 2013 shaft occupied separate and carefully prepared graves. Bodies were extended and usually oriented west to east. The absence of rich grave goods is normal in a Christian cemetery and does not indicate indifference. A person might have been wrapped in a shroud, but organic cloth and wood decay.

An individual grave during mass mortality still required labour. Someone had to remove the body, carry it outside the wall, open the ground, position the dead, refill the grave and prepare space for the next arrival. The order preserved in the soil is the material trace of grave diggers, bearers, clergy and organisers whose names rarely appear in the written history.

“Emergency cemetery” is therefore a more precise term. It does not make the catastrophe smaller. It demonstrates the tension between a devastating number of deaths and a continuing effort to preserve a norm. The funerary system did not simply vanish. It expanded beyond the City.

The distinction also changes the moral angle of the story. A pit makes medieval people seem helpless or brutal. A managed cemetery shows them solving an impossible logistical problem with the concepts and resources available to them. There may have been haste, exhaustion and grief, but haste is not the same as contempt.

What Crossrail and MOLA found

Knowledge of the Charterhouse cemetery accumulated in stages. A skeleton was found in a trial trench in the north-eastern portion of the square in 1998. Works in 2011 exposed redeposited human bone. In 2013, Museum of London Archaeology investigated twenty-five in-situ burials in a ground-treatment shaft on the west side. A small community excavation in the garden in 2014 exposed parts of two additional burials, which were left in place.

Those points do not form a complete boundary. The professional fieldwork report is explicit that the cemetery’s limits are unknown. Burials may occupy the modern garden, some surrounding roads and perhaps land farther south. A video map should mark the excavated areas and a zone of uncertainty. It should not colour an entire neighbourhood as one proven continuous mass grave.

The three phases are especially important. Pottery and radiocarbon dating associate the earliest graves with the Black Death of 1348–49. A second group probably belongs to the 1361 epidemic, sometimes called the pestis secunda. A third may represent a later fifteenth-century outbreak. The cemetery was not necessarily opened for one catastrophic season and then sealed. It received the dead again when plague returned.

Rescue archaeology works under unusual pressure. Construction defines the area and timetable of excavation. Archaeologists do not remove everything they know may exist; they investigate what a project will disturb, document the context and preserve remains in place where possible. Crossrail endangered a buried layer by cutting through it, but its archaeological programme also funded the work that made the layer legible.

How a tooth becomes an archive

Plague generally kills too rapidly to create a disease-specific change in bone. An osteologist cannot look at a skeleton and confidently diagnose Yersinia pestis. Researchers therefore sample a tooth. The protected pulp cavity once received blood, and fragments of pathogen DNA may survive within it.

Ancient-DNA work requires rigorous controls against modern contamination. The molecules are short, rare and chemically damaged. Researchers are not reviving a living bacterium. They look for characteristic genetic sequences and patterns showing that the material is genuinely old. At Charterhouse, four of twelve tested people produced positive Yersinia pestis results, distributed across the burial phases.

A negative result does not prove that a person died of another cause. DNA may have decayed, the chosen tooth may contain too little pathogen material, or the method may fail to detect it. A positive result supplies strong evidence that an individual was infected near death. A negative result leaves the cause open.

That distinction is crucial for responsible storytelling. “Four positive” must not become either “only four had plague” or “all twenty-five are genetically confirmed.” Scientific uncertainty is not a weakness in the story. It tells the audience exactly what the evidence can carry.

Isotopes in tooth enamel and bone can indicate aspects of childhood origin and diet. Osteology estimates age, biological sex, stature, injury and chronic stress. The analysis turns an abstract category of “victims” into a varied group of Londoners whose bodies held histories before the epidemic. Some had experienced poor nutrition, demanding labour or earlier illness. Plague may have ended their lives, but it was not the entire content of them.

A monastery grows beside the dead

The site did not disappear from London’s map when the first emergency passed. Michael Northburgh, Bishop of London, participated in plans for a religious foundation; after his death, money and property from his estate supported the eventual house. In 1371, Manny received royal licence to found a Carthusian monastery, formally the House of the Salutation of the Mother of God.

The word Charterhouse derives from Chartreuse, associated with the French mother house of the Carthusian order. Carthusian life joined a common monastic structure to near-eremitic solitude. A monk spent much of his time in an individual cell and garden, coming together with the community for worship.

The monastery did not simply rise “on top of a plague pit.” It developed beside the cemetery and chapel within a landscape already shaped by prayer for the dead. The epidemic’s memory contributed to the religious meaning of the site. Local people also used parts of the space for prayer and recreation, and the early monastery existed for decades before a complete enclosing wall cut it off.

The Charterhouse later passed through the Reformation, conversion into an elite Tudor mansion, a school and Thomas Sutton’s almshouse. Today it is not an abandoned monument to mortality. It remains a charitable residential community. Cemetery, monastery, royal politics, education and care for older people share one address.

The numbers that become legend

Writing at the end of the sixteenth century, John Stow recorded enormous burial totals. Even higher figures became associated with papal documents and later retellings. They survive because a shocking number gives an audience an immediate measure of disaster. Yet these totals are also a language of memory: later generations searched for a number large enough to express an event they understood as almost beyond counting.

Modern estimates also depend on a model. Researchers multiply a supposed burial area by grave density, assume a number of rows and consider how long the cemetery operated. A narrow excavated shaft may not represent every part of the ground. The careful formulation is that many thousands may have been buried at West Smithfield, while written sources describe an extraordinary daily flow. An exact total should not be delivered without a warning label.

The verb “discovered” can mislead in a similar way. Crossrail did not uncover the entire cemetery and bring all its dead to the surface. Archaeologists investigated twenty-five burials inside one engineering intervention. Most of the cemetery remains beneath gardens, roads and buildings. Archaeology rarely removes a complete layer of the past; it opens selected windows.

Why this is not a curse story

A peaceful garden over a cemetery can be framed as a macabre contradiction: office workers eat lunch without knowing that thousands of dead lie below. But medieval and modern central London contain numerous former burial grounds. The presence of the dead does not turn a place into an anomaly.

The Charterhouse has school traditions of ghost stories, and its museum display deliberately plays with the word “ghosts.” That is part of the site’s later culture, not archaeological proof of haunting. The most astonishing connection is material rather than supernatural: fragments of a bacterium can survive in a tooth for more than six centuries and connect an unnamed Londoner to the global history of a pandemic.

Horror prefers a pit to a cemetery, a number to a person and a skeleton to a biography. Documentary storytelling can reverse that movement. It can restore structure, uncertainty and dignity. Instead of asking what walks beneath the square, it can ask who dug, who carried the body, and why a society continued to pray when its familiar world was collapsing.

People to remember

The twenty-five excavated individuals are not Crossrail props or a single category. They had ages, origins, physical work, illnesses and relationships before the epidemic. Their names are gone, but research should not strip them of personhood a second time.

The unnamed cemetery workers organised the arrival of the dead and preserved individual burials. The ordered graves are their surviving biography even though chroniclers rarely named bearers and gravediggers.

Walter Manny supplied land, supported the chapel and later became the principal founder of the Carthusian house. His military career, status, piety and concern for posthumous memory belonged to the same life.

Michael Northburgh, Bishop of London helped transform cemetery land and chapel into a durable religious project, and his bequest supported the Carthusian foundation.

The MOLA archaeologists and specialists documented body position and context and coordinated osteology, dating, isotope and genetic analysis. Their work replaced sensational removal with a chain of evidence.

Crossrail workers and planners became part of the preservation story. Major infrastructure threatened the archaeological level, while monitoring and funding allowed it to be studied before disturbance.

Fact, interpretation and legend

Fact: the cemetery began during the Black Death. Simplification: everything under the square dates only to 1348–49. At least three phases have been identified.

Fact: twenty-five skeletons were excavated in 2013. Error: archaeologists excavated the entire cemetery. They investigated a small shaft, and the cemetery boundary is unresolved.

Fact: Yersinia pestis DNA was found in four of twelve tested individuals. Error: the remaining eight definitely did not die of plague. Negative results may reflect preservation and detection limits.

Fact: mortality was catastrophic. Unknown: the exact number buried at West Smithfield. Later totals cannot be repeated as if they were a burial register.

Fact: the ground lay beyond the wall. Anachronism: it was designed according to modern bacteriological quarantine. Medieval decisions combined available space, authority, religion and necessity.

Fact: the Charterhouse has a tradition of ghost stories. Legend: the excavations prove that the garden is cursed or haunted.

The place today

Begin near Barbican station and approach Charterhouse Square through streets where modern transport has nearly erased the sensation of standing beyond medieval London’s wall. Your first shot should be the calm green garden. Do not call the whole visible square the precise cemetery outline. Mark the western roadway where the 2013 shaft lay, then show uncertainty around it.

The Charterhouse museum includes a reconstructed burial and interpretation of the Black Death. It explains body position without requiring an intrusive close-up of real remains. The chapel and historic courts connect the cemetery to the institution’s long afterlife. Check opening times, ticketed tours and filming rules on the official site immediately before visiting.

Remember that this is a functioning almshouse and home. A quiet voice, a small crew and no unsolicited filming of residents are more important than an atmospheric shot. Do not lie on the grass “above the corpses,” scatter prop bones or encourage viewers to search for human fragments.

A passing train or the sound of Farringdon makes the strongest ending. The medieval cemetery was exposed not because London stopped, but because it changed again. Infrastructure cut into the past and simultaneously funded its investigation.

Research bibliography

S0291. MOLA, research on the Crossrail skeletons — twenty-five burials, dating, osteology, isotopes and ancient DNA.

S0292. Crossrail / MOLA, Charterhouse Square fieldwork report — find locations, uncertain limits and three cemetery phases.

S0293. Crossrail Learning Legacy, Farringdon archaeology archive — the project’s fieldwork documentation.

S0294. Charterhouse / Oxford Heritage Network, Medieval Mythbusting — burial totals, organisation and interpretation.

S0295. The Charterhouse, official history — cemetery, chapel, monastery and later uses.

S0296. The Charterhouse FAQs — access, museum, square and residential community.

S0297. London Museum, history of the London Charterhouse — overview of West Smithfield and the institution.

S0298. Victoria County History / British History Online — scholarly history of the Carthusian house.

S0299. John Stow, Survey of London — early printed account requiring critical treatment of its totals.

S0300. Nature, Yersinia pestis genome from London Black Death victims — archaeogenomic context.

S0301. Nature, source of the pandemic strain in central Eurasia — the global prehistory.

S0302. English Heritage, the Carthusian Order — monastic context.

S0303. Historic England, Master’s Lodge — official location and surviving Charterhouse entrance fabric.

S0304. The Charterhouse, Walter Manny biography — military career, patronage and piety.

S0305. Charterhouse Conservation Management Plan — site layout, development and heritage protection.