Bristol Castle: A Norman Royal Fortress
Site at a Glance
- Rating
- 4.1
- Popularity
- Very Low
- Country
- United Kingdom
- Primary era
- Medieval
- External website
- Open
- Eras represented
- Medieval
- Civilizations
- English, Norman
- Site type
- Military
- Remains
- Castle
On this page11 sections
History
Bristol Castle is a Norman castle in the United Kingdom, established in the late eleventh century on the eastern side of Bristol’s walled town. Built beside the River Avon, it began as a timber motte-and-bailey, a raised earth mound with a fortified enclosure and adjoining courtyard. William the Conqueror probably ordered its construction after retaining the manor of Bristol as part of the royal demesne.
Norman foundation
Geoffrey de Montbray, Bishop of Coutances and one of William’s close allies, appears to have controlled the castle for the king. The Domesday Book of 1086 records that Geoffrey received part of the king’s income from Bristol. The castle enters surviving records directly in 1088, when Geoffrey used it as a base for his rebellion against William II.
William II defeated the rebels and granted Bristol Castle, together with extensive lands in Gloucestershire, to Robert FitzHamon. These estates formed the basis of the feudal barony of Gloucester. Robert FitzHamon’s daughter and heir, Mabel, married Robert, an illegitimate son of Henry I. After FitzHamon’s death in 1107, Mabel transferred the barony to her husband, who became known as Robert of Gloucester.
Under Robert of Gloucester, the early timber fortress was developed into a substantial stone castle. He enlarged the outer fortifications and rebuilt the interior, making Bristol his principal English seat. The later complex included a curtain wall, a keep, and other defensive and residential buildings.
The civil war under Stephen and Matilda
Bristol Castle became a major stronghold during the civil war that followed Henry I’s death in 1135. Henry’s designated heir, Matilda, was challenged by her cousin Stephen of Blois, who took the throne and began the succession conflict known as the Anarchy. Robert of Gloucester, Matilda’s half-brother, supported her claim and served as one of her leading military commanders. Rebels gathered at his castle in Bristol.
Stephen inspected Bristol in 1138 but decided that the town and castle were too strongly defended to attack. After Stephen was captured in 1141, he was held at Bristol Castle. His imprisonment ended when Robert of Gloucester was captured as well, allowing the two men to be exchanged.
Royal castle and place of confinement
The castle and the earldom of Gloucester passed to Robert of Gloucester’s son, William FitzRobert. In 1173, William joined the rebellion of Henry the Young King and his brothers Richard and Geoffrey against their father, Henry II. The rebellion was suppressed, and Bristol Castle was confiscated and brought under royal control.
As royal property, Bristol became one of England’s important royal castles. Henry III, king of England from 1216 to 1272, had been educated there in his youth and spent heavily on its defenses and accommodation. His works included a barbican, an outer defensive structure protecting an entrance, before the main west gate, along with a gate tower and a great hall used for feasting and ceremonies.
From 1224, Eleanor of Brittany was confined at Bristol Castle under comparatively comfortable conditions. She was a member of the English royal family and a claimant to the succession, and Henry III kept her there for much of her life. She was presumably held in a tower or room between 1225 and 1227, spent much of her imprisonment in accommodation within the keep, and remained confined at the castle almost until her death in 1241.
After Edward I conquered Wales in 1283, the two young sons of Dafydd ap Gruffydd, the last prince of Gwynedd, were imprisoned for life at Bristol Castle. In June 1399, William le Scrope, Sir John Bussy, and Sir Henry Green were executed at the castle without trial by the Duke of Hereford. He had returned successfully from exile and soon became King Henry IV.
Decline and destruction
A detailed description written in 1480 provides the earliest substantial account of the castle. By the time the antiquary John Leland visited around 1540, it was already neglected. During the sixteenth century the castle fell out of use, and its precinct became a refuge for lawbreakers because Bristol’s civic authorities had no control over the royal property.
Bristol purchased the castle in 1630. When the English Civil War began, the city supported Parliament and partly repaired the fortress, but Royalist troops later occupied Bristol. Parliament recaptured the city in 1645, after which Oliver Cromwell ordered the castle’s destruction to prevent its reuse by Royalist forces. The remaining structures had been demolished by 1656.
The former castle area was redeveloped for commercial purposes and was later heavily damaged during the Bristol Blitz, the German bombing campaign against Bristol during the Second World War. After the war, the area was redeveloped as the public open space now called Castle Park. The surviving remains, including the sally port and parts of the castle vaults, are protected as the scheduled monument “Partial remains of Bristol Castle.” The vaulted chambers also have scheduled ancient monument protection under English heritage law.
Remains
Bristol Castle occupied a strongly defended position between the Avon to the south and the Frome to the north, at the eastern edge of the walled town. A canal connected the Frome to the Avon and created the castle moat on the eastern side. A weir to the north balanced the different water levels of the two rivers. Together, the rivers and moat placed the town and castle within a water-based defensive setting.
Courts, walls, and water defenses
The original castle was a timber motte-and-bailey. Its later stone form contained a curtain wall and a keep, with the principal rebuilding probably carried out under Robert of Gloucester. By around 1540, the castle had two courts. The outer court contained a large keep, with a dungeon in its north-western part, while the other court held a church, domestic buildings, and a great gate on the south side.
Walls, battlements, towers, ramparts, and siege equipment formed the castle’s defenses. Many of the towers still stood in the sixteenth century, although they were then considered close to collapse. The castle also had a stone bridge and three ramparts on the left bank of the Frome, leading toward the river’s mouth.
Tradition attributes the construction of the keep to Robert of Gloucester and says that its stone was brought from Caen in Normandy. Robert was known as the Red Earl of Gloucester, but this account of the keep’s materials remains a tradition rather than a certain fact.
The moat was covered over in 1847 but remains beneath Castle Park. Much of it is navigable by boat and flows into Bristol’s Floating Harbour, a section of Bristol’s waterway system engineered to maintain navigable water levels. The western part of the moat survives as a dry ditch.
Surviving structures
Sally port and postern
A sally port, a small gate used for sorties or access, survives near St Peter’s Church and led into the moat. A separate postern tunnel, meaning a secondary entrance often concealed from view, runs beneath the south-western part of the castle for approximately 16 metres.
Castle Vaults
Some remains of the great banqueting hall added during Henry III’s improvements survive above ground within the building known as Castle Vaults. The structure was still standing in the twentieth century and was being used as a tobacconist’s shop in 1938.
Octagonal tower
One octagonal tower survived the main demolition of the castle until 1927. Samuel Loxton made a sketch of it in 1907. The surviving remains visible in Castle Park today include the sally port, while the vaulted chambers preserve part of the castle’s former interior fabric.
