7 Strange Facts About Medieval Castle Toilets Nobody Tells You

By Trivia Daily, History Desk — Published August 26, 2026

Table of Contents

• Key Takeaways
• The Strange Medieval Castle Garderobe: More Than Just a Toilet
• 1. They Emptied Directly Down Castle Walls
• 2. Toilet Shafts Became Secret Invasion Routes
• 3. Communal Seating Was Perfectly Normal
• 4. Location Determined Social Status
• 5. They Doubled as Birthing Rooms
• 6. Waste Collectors Had a Surprisingly Lucrative Job
• 7. Moss Was the Toilet Paper of Choice
• Frequently Asked Questions

Medieval castles conjure images of knights, banquets, and epic sieges—but rarely do we stop to consider where everyone went to the bathroom. The truth is, castle toilets (called “garderobes”) were engineering marvels of their era, and their design reveals surprising ingenuity from a civilization often dismissed as primitive. These strange medieval castle facilities were far more sophisticated than most people realize, blending practicality with some truly bizarre features that would shock modern sensibilities.

From the 11th through the 16th century, European castle architects grappled with a problem that plagued every fortress: how to dispose of human waste for hundreds of occupants without modern plumbing. Their solutions ranged from clever to disgusting, and the historical record preserves details that most history textbooks politely skip over.

Key Takeaways

• Medieval castle toilets were called “garderobes,” a French term meaning “guard robes,” because people stored clothes near them to repel moths with ammonia fumes.
• Most garderobes were simply stone seats with holes that emptied directly down exterior castle walls or into moats below.
• Castle defenders sometimes used vertical toilet shafts as secret entrances during sieges, leading to some of history’s most undignified military defeats.
• The ammonia from urine in garderobes was deliberately harnessed for its antibacterial and pest-repelling properties throughout the medieval era.
• Toilet paper didn’t exist in medieval times—castle residents used moss, straw, or cloth scraps instead.
• Some castles featured communal toilet rooms where multiple people sat side-by-side with no privacy partitions.

The Strange Medieval Castle Garderobe: More Than Just a Toilet

The word “garderobe” literally translates from French as “guard robes” or “wardrobe,” and this wasn’t accidental wordplay. Medieval castle residents discovered that the ammonia vapors rising from their toilet chambers had a practical side effect: they repelled moths and other fabric-eating insects. Wealthy nobles and castle inhabitants deliberately hung their finest garments in or near these spaces to protect expensive fabrics from pest damage. The pungent smell was considered a worthwhile trade-off for preservation.

This practice reveals how people in the past approached sanitation differently than modern civilizations. Rather than isolating waste as something purely disgusting, medieval architects and residents found ways to extract utility from every aspect of castle life. The garderobe served triple duty as toilet, storage space, and fumigation chamber—a level of efficiency that speaks to the resourcefulness of the era.

1. They Emptied Directly Down Castle Walls

Most medieval garderobes were astonishingly simple: a stone seat with a hole cut through it, positioned over a vertical shaft built into the castle’s outer wall. Gravity did all the work. When someone used the facility, waste dropped straight down the exterior wall, accumulating in a pile at the castle’s foundation or splashing into the moat below. Some castles angled these shafts slightly so waste would scatter rather than pile up in one spot, creating long, dark streaks down the stonework that must have been visible from considerable distances.

This design had obvious drawbacks. The stench near castle walls could be overwhelming, especially in summer. Moats became cesspools rather than defensive barriers. Yet for castle engineers of the medieval period, the system worked well enough—it required no maintenance, no emptying, and no complex infrastructure. The empire of gravity was the only plumbing they needed.

2. Toilet Shafts Became Secret Invasion Routes

The vertical shafts of garderobes created an unintended security vulnerability that clever attackers occasionally exploited. Historical records document several sieges where soldiers climbed up through toilet chutes to infiltrate castles from below. The shafts were narrow, filthy, and utterly revolting, but they offered a path past thick walls and locked gates. One famous incident involved the capture of Château Gaillard in France in 1204, when soldiers reportedly entered through the latrine system during a siege.

This weakness forced castle designers to reconsider their sanitation systems. Some added iron grates across garderobe openings, while others built deliberately winding or offset shafts that would be impossible to climb. The balance between sanitation convenience and military security became a genuine engineering challenge across European civilizations during the height of castle construction.

3. Communal Seating Was Perfectly Normal

Privacy wasn’t a medieval priority. Many castles featured “great chambers” with multiple toilet seats arranged side-by-side, where nobles and soldiers would sit together while relieving themselves. These communal garderobes had no partitions, no doors, and no sense of personal space that modern people would recognize. Conversation during toilet use was apparently commonplace and unremarkable.

This reflects broader attitudes about bodily functions in medieval society. The concept of bathroom privacy as we understand it today developed gradually over centuries. In the medieval era, the human body and its needs were viewed more pragmatically and less squeamishly than in later historical periods. The same openness applied to bathing, dressing, and even sleeping arrangements in many castle settings.

4. Location Determined Social Status

Not all garderobes were created equal. The positioning of toilet facilities within a castle revealed strict social hierarchies. Lords and ladies enjoyed private garderobes built into their personal chambers, often with wooden seats and sometimes even cushions. These were positioned in tower corners or wall alcoves that offered at least nominal privacy. Lower-ranking residents and soldiers, meanwhile, shared larger communal facilities located in less desirable areas—often near kitchens or in outer buildings.

The best garderobes were architectural features in their own right, with stone corbels supporting them over the castle exterior and sometimes small windows for ventilation. The worst were barely more than holes in floor planks over open pits. This stratification extended even to waste disposal in a society obsessed with maintaining clear distinctions between social classes throughout the medieval century.

5. They Doubled as Birthing Rooms

Medieval women sometimes gave birth in garderobes, and this wasn’t as strange as it sounds. The chambers offered privacy, which was rare in crowded castles. They were also easier to clean than bedrooms filled with expensive fabrics and furnishings. Blood and birthing fluids could be washed away down the same shaft that handled daily waste. Some historical records suggest that illegitimate births particularly took place in these spaces, where secrecy was paramount and evidence could be disposed of discretely.

This multipurpose use of toilet spaces highlights how differently medieval people categorized and compartmentalized bodily functions. The modern separation of “clean” and “dirty” spaces wasn’t nearly as rigid in the past. Practicality trumped squeamishness in an era where survival often depended on making efficient use of every available space within fortress walls.

6. Waste Collectors Had a Surprisingly Lucrative Job

Not every garderobe emptied into a moat or down an exterior wall. Some castles used cesspits—large underground chambers that collected waste and required periodic emptying. The workers who performed this task, called “gong fermors” or “night soil men,” earned surprisingly good wages for their disgusting work. The job was so unpleasant that demand for workers exceeded supply, driving up compensation considerably compared to other manual labor of the era.

These collectors sold the waste to farmers as fertilizer, creating an early waste-management economy. Human waste was valuable for agriculture, and the trade in “night soil” represented an early form of recycling in human civilizations. The practice continued well beyond the medieval period, lasting into the 19th century in some European cities before modern sewage systems made it obsolete.

7. Moss Was the Toilet Paper of Choice

Medieval castle residents had to improvise when it came to personal hygiene after using the garderobe. Toilet paper as we know it didn’t exist in Europe until centuries later. Instead, people used whatever soft materials were available: moss gathered from forests, straw, hay, wool scraps, or strips of old linen. Wealthy individuals might use softer cloths that could be washed and reused, while common soldiers made do with whatever they could find.

Some historical accounts mention the use of smooth stones or even corn cobs in other parts of the world, but in European castles, plant materials dominated. The practice of using moss was so common that some castles apparently kept supplies stockpiled near garderobe chambers. This detail of everyday life in the past rarely makes it into dramatic retellings of medieval history, but it shaped the daily reality of everyone from peasants to princes throughout the era.

Frequently Asked Questions

Did medieval castles have running water?

Most medieval castles did not have running water in the modern sense. Some had wells or rainwater collection systems, and a few late-medieval castles featured rudimentary plumbing using gravity-fed pipes, but these were rare exceptions. Water for washing was typically carried by hand from wells or nearby streams.

How did medieval people deal with the smell?

Medieval castle occupants used herbs like lavender, rushes on floors, and incense to mask odors. They also became accustomed to smells that modern people would find intolerable. Perfumes and scented oils were popular among the wealthy partly to combat the general lack of sanitation throughout the castle environment.

Were medieval people aware of hygiene and disease?

Medieval people understood that filth and disease were connected, though they didn’t know about germs. They practiced basic hygiene like washing hands before meals and understood that removing waste from living areas was important. However, their methods were limited by available technology and scientific knowledge of the era.

What happened to garderobe waste in winter?

In winter, waste would freeze in the shafts and on castle walls, creating a temporarily less odorous but visually unpleasant situation. Spring thaws brought renewed stench as accumulated winter waste melted. Some castles had workers chip away frozen waste buildup to prevent blockages in the garderobe shafts.

The next time you visit a medieval castle, look for the telltale corbels and small windows that mark where garderobes once protruded from walls. These humble facilities shaped daily life for everyone from kings to kitchen workers, and their engineering solutions—however crude by modern standards—kept massive fortress populations functioning for centuries. History lives in the strangest places.