Keep facts for kids
A keep was a strong, tall tower built inside castles during the Middle Ages in Europe. These towers were often the safest part of a castle. They served as a home for the lord and his family. If enemies attacked the rest of the castle, the keep was the last place to hide.
The first keeps were made of wood. They were a key part of early castles called motte-and-bailey castles. These appeared in France around the 10th century. This design then spread to England, Portugal, and Italy. After the Norman Conquest in 1066, keeps became common in Wales and Ireland.
Later, people started building keeps from stone. These stone keeps were very important, both for defense and to show power. Building them could take many years. Over time, new designs appeared. Some keeps were square, others round, and some even had unique shapes.
By the 15th century, new weapons like artillery made keeps less safe. For example, Bamburgh Castle's keep was once thought unbeatable. But in 1464, cannons destroyed it. Keeps slowly became less popular for living in or for defense. Many were damaged in wars. However, in the 19th century, people became interested in keeps again. Many were repaired or rebuilt. Today, keeps are important historical sites. They attract many tourists across Europe.
What is a Keep? Understanding the Name
The word keep has been used since the 16th century to describe the main towers in castles. It comes from an old English word, kype, which meant "basket" or "cask." This name was first used for round keeps that looked like barrels. By the 17th century, people thought "keep" came from the word "to keep" or "to protect."
Historians used to think all keeps were built mainly for defense. They believed keeps were always the last safe place in a castle. However, we now know that keeps had many uses. They were also important homes for powerful lords. They showed off the lord's wealth and power.
In the Middle Ages, people didn't use the word "keep." They had different names for these towers. In Latin, they were called turris (tower) or magna turris (great tower). In France, they were called a donjon. This word meant "lordship," showing the tower belonged to the lord. Spanish writers called them torre del homenaje, or "tower of homage." This meant a tower where people showed respect to their lord. Interestingly, the French word donjon later became "dungeon" in English. At first, "dungeon" meant the main tower, not a prison.
Today, historians understand that keeps were not all the same. They had different designs and purposes. So, while we use "keep" today, it's good to remember its varied history.
The Story of Keeps: From Wood to Stone
Early Wooden Keeps: The First Strongholds
The very first keeps were part of motte-and-bailey castles. These castles started appearing in the 10th century. The earliest known one was built in Vincy, France, in 979. Powerful lords in France, like Fulk III, built many of them. William the Conqueror brought this castle style to England in 1066. It then spread into Wales.
A motte-and-bailey castle had two main parts. There was a large earth mound called a motte. This mound was often man-made. On top of the motte, a wooden keep and a protective wall were built. The second part was a lower, walled area called a bailey. The walls around the keep could be strengthened with earth and stones. This made them more stable.
Smaller mottes held simple towers for a few soldiers. Larger mottes could support grander keeps. Many wooden keeps had a bretasche. This was a square structure that hung over the upper floors. It helped defenders protect the castle. Wooden keeps were sometimes covered with animal skins. This helped protect them from fire during attacks.
A writer from the 1130s described these keeps. He said nobles built a high earth mound with a deep ditch. On top, strong wooden logs formed a fence. Inside this fence was the keep, overseeing everything. A bridge led up to the top of the mound. These keeps were not just for defense. They also sent a strong message of power to the local people.
Wooden keeps could be very large. One 12th-century writer described a wooden keep at Ardres Castle. It had cellars and storage rooms on the ground floor. The next floor had living rooms, a kitchen, and the lord's bedroom. The top floor had smaller rooms for watchmen and servants.
In Germany, similar tall, wooden towers were built. They were called Bergfriede. These towers were mainly for fighting. They were usually smaller and not used as homes. They were also part of the castle's outer defenses.
Stone Keeps Emerge: Stronger and Taller
Stone keeps started to appear in France during the 10th century. By the 11th century, they became more common. This style spread through France, England, and parts of Italy. Some wooden castles were rebuilt with stone keeps. Other stone keeps were built from scratch. Sometimes, the keep and its mound were built at the same time. This made the building more stable.
Stone keeps arrived in Ireland in the 1170s. They were very popular with the new Anglo-Norman lords. Two main types of stone keeps were built. There were four-sided keeps, known as Norman keeps. These were often square or rectangular. The other type was a circular shell keep.
It is not fully clear why castles changed from wood to stone. People used to think stone was better because wood could burn. But studies show wooden castles were often very strong too. Stone became popular for both military reasons and to show power.
Building stone keeps needed skilled workers. These workers had to be paid. So, stone keeps were expensive. They also took a long time to build. Walls could only be raised a few meters each year. For example, the keep at Scarborough Castle took ten years to build. Because of this, not many stone keeps were built at first.
Norman keeps had four sides. Their corners were often reinforced. Some were long rectangles, others were perfect squares. These keeps could be up to four stories high. The entrance was usually on the first floor. This made it harder for attackers to break in. Early French keeps had wooden stairs outside. Later, stone stairs were built. Sometimes, extra walls protected the entrance stairs.
The strength of Norman keeps came from their thick walls. These walls could be over 7 meters thick. They were incredibly strong. They also kept the inside of the building cool in summer and warm in winter. Larger keeps had internal walls to divide rooms. Smaller ones had one room per floor.
Historians have discussed if Norman keeps were mainly for fighting or for showing power. Many were very strong. But their design had some weaknesses. For example, the corners of square keeps were vulnerable to attack. However, early siege weapons were not strong enough to cause much damage.
Many stone Norman keeps also had beautiful decorations. Norwich Castle had fancy arches on its outside. Its entrance seemed designed for grand ceremonies, not just defense. The keep at Hedingham Castle was impressive for events. But it had some flaws for military defense. Famous early keeps like the White Tower were built in a Romanesque style. They often reused Roman materials. These keeps were meant to impress people and show royal power. This political importance might explain why they were built for so long.
The second early stone design was the shell keep. This involved replacing a wooden keep or fence with a circular stone wall. Buildings were then built around the inside of this wall. This created a small inner courtyard. This style was popular in southeast England and France. Restormel Castle is a great example. Circular designs had some military benefits. But the main reason for shell keeps was often the round shape of the original earth mounds.
Keeps Change and Spread: New Designs and Ideas
In the late 12th century, new keep designs appeared in France and England. Keeps also spread to Spain. But some new castles were built without keeps at all. Some people thought these new designs were better for defense. For example, curved walls might deflect attacks. Others believe these changes were more about politics and social trends.
For much of the 12th century, France was divided. The French kings ruled from Paris. The English kings controlled Normandy and much of western France. In French lands, new keep designs began. At Houdan in 1120, a circular keep was built with four round turrets. The Château d'Étampes later used a unique quatrefoil (four-leaf clover) shape.
In the 1190s, French King Philip II gained more power. He captured Normandy in 1204. Philip II then built many circular keeps, like the Tour Jeanne d'Arc. Most were in his newly won lands. The first was at the Louvre in 1190. At least twenty more followed. These circular keeps might have come from Spain. They also had military benefits. But Philip's main goal was political. He wanted to show his new power over his expanded kingdom.
Keep designs in England changed later than in France. Wooden keeps stopped being built in most of England by the 1150s. But they continued in Wales. By the late 12th century, England and Ireland saw some new angular or polygonal keeps. Examples include Orford Castle with its three towers. Trim Castle had a cross-shaped keep. Conisborough had a famous polygonal design. Despite these, square keeps remained popular in England.
These new Anglo-Norman designs were for both military and political reasons. The keep at Orford Castle was unusual. It was likely built to show King Henry's power in a disputed area. Its design reminded people of King Arthur or Constantinople. These were symbols of royal power. Even strong military designs like Château Gaillard had political goals. Its keep was impressive but had flaws for defense. It was meant to show Angevin authority.
In Spain, Christian and Islamic kingdoms usually built watchtowers, not keeps. But by the 12th century, French influence led to square keeps in Christian castles. This practice then spread to Islamic kingdoms.
In other parts of Europe, stone towers were used. But they didn't serve all the same purposes as western keeps. In the Netherlands, nobles built standalone square towers. In Germany, rectangular stone castles replaced motte-and-bailey designs. These included stone Bergfriede. These were still different from the residential keeps in western Europe.
New castle designs also made keeps less necessary. One was the concentric castle approach. This had outer walls with towers. It might also have more layers of defense. Castles like Framlingham had no central keep. Military experts thought these designs were better coordinated.
Gatehouses also grew in size and strength in England. They became so strong that they challenged the need for a keep. Large gatehouses, with their towers and defenses, were sometimes called "gatehouse keeps."
The quadrangular castle design also removed the need for a keep. These castles took the layout of a manor house. Rooms faced a central courtyard. A wall was built around them to form a castle. Examples include Yonne and Château de Farcheville. They had four large, circular corner towers but no central keep.
Later Keeps: Grand Palaces and Strong Towers
Towards the end of the medieval period, keeps became popular again. Some castles, like the Bastille in the 1370s, still had no keeps. But the wealthiest people in France, England, and Spain started building huge keeps. These were part of new "palace fortresses." This change was due to social reasons. Rich lords wanted more privacy from their many servants. New architectural ideas were also shared across Europe.
The return of French keep design began after military defeats in the 1340s and 1350s. King Charles V of France wanted to restore royal power. He built new castles, like the Château de Vincennes. Its keep was finished by 1380. It was very new for its time. It was six stories high with battlements for defenders. This luxurious building was protected by an outer wall. The Vincennes keep was copied across France. This style featured very tall keeps with prominent defenses.
The French style spread to Spain. Powerful nobles in Castile built similar tall keeps, like at Peñafiel. King Henry IV of Castile responded by building royal castles with grand keeps. These included the Castle of La Mota and Alcázar of Segovia. These keeps became a key part of Spanish castle design. Smaller versions were built by new wealthy families. The French style also influenced some German castles. The keep of Kolossi Castle in Cyprus, built in 1454, is another impressive example. It is a three-floor square keep, 21 meters high.
In the 15th and 16th centuries, England and Wales saw even grander keeps. The first of these "tower keeps" were built in northern England. They were inspired by French designs. They also showed the growing wealth of noble families. New castles like Raby and Bolton combined quadrangular styles with huge tower keeps. These were very grand castles.
The fashion for expensive, palace-like castles with complex tower keeps spread. New keeps were built at Wardour and Raglan Castle. Some keeps in England were even built with brick, like at Caister. In Scotland, Holyrood Great Tower was built between 1528 and 1532. It combined English and French styles. These tower keeps were very costly. They were designed for rich lords to live in luxury.
At the same time, smaller, keep-like buildings appeared. These were called tower houses or peel towers. They were built across Ireland, Scotland, and northern England. Often, poorer lords built them. A tower house was usually a tall, square stone building. Most experts agree that tower houses are a type of fortified home, not true keeps.
By the 16th century, keeps became less popular again. In England, the gatehouse became the main focus of new castles. It was rare for a lord to build both a keep and a large gatehouse. By the early 16th century, almost no new keeps were built in England. The classical Palladian style of architecture became popular. This style needed large, open rooms. These did not fit well into traditional keeps.
Keeps Today: From Ruins to Tourist Spots
From the 17th century onwards, some keeps were deliberately destroyed. After the Second English Civil War in 1649, many English castles were damaged. This was to prevent them from being used in future uprisings. Keeps were often targeted because they were so important. For example, at Kenilworth, only the keep was damaged. Similar destruction happened in France, but on a smaller scale.
In the mid-18th century, ruined medieval castles became fashionable again in England. They were seen as interesting and historic. Some keeps were changed to look even taller or more ruined. This created a dramatic silhouette. This interest continued into the 19th century. People started building new castles that looked like old ones. These often included large keeps. Penrhyn was one of the last replica keeps, built between 1820 and 1840.
Another trend in 19th-century Europe was to restore old castles. Architects tried to make them look more unified in a Gothic Revival style. Many keeps were restored or rebuilt. In England, architect Anthony Salvin worked on keeps like Windsor Castle. In France, Eugène Viollet-le-Duc rebuilt keeps at places like Château de Pierrefonds in the 1860s and 1870s.
The Spanish Civil War and the World Wars in the 20th century damaged many keeps. The famous keep at Château de Coucy was destroyed by the German Army in 1917. By the late 20th century, governments started protecting castle keeps. Today, most keeps in England are ruins. They are part of the tourism and heritage industries. Windsor Castle's keep is a rare exception, still used as a functioning building. In Germany, many Bergfriede towers were restored. They are now used as offices or youth hostels. Some tower houses have even become modern homes.
See also
- Tenshu, the Japanese castle keep, often wooden
- Medieval architecture
- Semi-fortified Romanian culă
- Čardak, similar fortifications used by South Slavs
