William the Conqueror built a castle on this mound in 1068, while marching north to crush a rebellion. Its earth-and-timber defences faced revolts and a Danish attack in the early years. By the 1070s, the damage was repaired, and York had a lasting anchor for Norman rule.
History of Clifford's Tower | The rise, fall, and survival of York Castle’s iconic keep
High on its grassy mound, Clifford's Tower has watched over York for nearly a thousand years. William the Conqueror raised a timber fortress here. In 1190, it became the setting for one of medieval England's darkest days, when the tower burned during the massacre of York's Jewish community. Later, Henry III rebuilt it in stone, its four curved lobes unlike any typical castle keep. Here's all you need to know about the largest remaining part of York Castle.
Clifford’s Tower timeline
1068: Norman castle founded
William the Conqueror builds a castle on the mound where Clifford's Tower now stands, while marching north to suppress a rebellion.1190: Massacre of York's Jewish community
About 150 people sheltering in the castle are besieged by a mob. On 16 March, many die by mass suicide, and the wooden tower is set on fire.Mid-13th century: Stone tower built
Henry III builds a new stone tower with a four-lobed plan as war with Scotland looms. Work is intermittent and likely ends in the 1270s.1596–97: Demolition scandal
York's aldermen accuse the gaoler, Robert Redhead, of trying to demolish the derelict tower and sell the stone. The records contain the first known use of the name "Clifford's Tower".1643: Civil War garrison
A Royalist garrison re-roofs the tower, adds a rooftop gun platform and largely rebuilds the forebuilding. The city falls to Parliament in 1644.1684: Fire guts the interior
The fire is said to have started from a ceremonial St George's Day salute. By 1699, the tower is completely roofless.1820s–30s: Hidden inside a prison
The castle prison grows to enclose the whole site, hiding the mound and tower from view.1915: Taken into state care
On 30 March, Clifford's Tower enters state guardianship.1935: Prison buildings demolished
The surviving 19th-century prison buildings come down, and public access to the mound improves.2022: Reopens after £5m project
English Heritage reopens the tower on 2 April with a timber interior structure, aerial walkways and a roof deck with views over York.
Clifford’s Tower history explained
1068–1190: Conquest and control
1190: The massacre
In March 1190, about 150 members of York's Jewish community sheltered in the castle, probably on this mound. A mob besieged them. Many took their own lives rather than surrender, and the timber tower burned. Others who left were reportedly killed. It remains one of the most notorious events in English history.
Mid-13th century: A stone keep for the Crown
Henry III replaced the timber tower with a stone keep as war with Scotland loomed. Work began in the mid-13th century, was intermittent, and probably finished in the 1270s. Its four-lobed plan drew on French designs. It served mainly as a place of administration, storage and imprisonment.
1300s–1600s: Decline and a new name
Floods and cracks weakened the tower, and by the 1500s several castle buildings lay in ruins. In 1596–97, York's aldermen accused the gaoler of trying to demolish the tower for its stone. The row contains the first recorded use of the name "Clifford's Tower."
1643–1684: War and fire
In 1643, a Royalist garrison re-roofed the tower and added a gun platform. York fell to Parliament in 1644. On 23 April 1684, fire gutted the interior, allegedly sparked by a St George's Day salute. By 1699, the tower stood as a roofless shell.
1820s–today: From prison yard to landmark
In the 1820s–30s, the castle prison grew to enclose the mound, hiding the tower from view. It entered state care in 1915, and the prison buildings were demolished in 1935 to open the site. In 2022, a £5m English Heritage project added walkways and a roof deck.
Construction and architecture of Clifford's Tower
Clifford's Tower stands on a motte, a man-made earth mound left by the Normans. Its walls are rough rubble stone faced with cut limestone. The plan is a quatrefoil, four rounded lobes joined like a clover leaf. A forebuilding, a fortified entrance block, houses the only way in. Its upper floor was almost certainly a chapel, and spiral staircases wound inside the thick walls. By 1360, a huge crack ran through the east lobe, and it is still visible. In 1902, engineer Basil Mott propped the tower with buried concrete supports. In 2022, a free-standing timber structure on its own raft foundation went inside, protecting the ruin without resting on the medieval stone.
Additional information about Clifford’s Tower’s history
A simple way to read the site in historical order is to start at the base of the mound, where the tower makes most sense as part of the lost York Castle complex. Pause by the memorial context linked to 1190, then climb the 55 steps and look first at the interior walls, where blocked openings and stone scars reveal missing floors and later damage. Next, seek out the chapel remains and heraldic details before heading up to the roof deck, where the views explain why this motte mattered strategically.
A useful myth-buster: not every visible mark belongs to the events of 1190. Much of the fabric visitors notice today reflects the 13th-century rebuild, Civil War use, the 1684 fire, and centuries of weathering. Because of the site’s connection to York’s Jewish history, it’s worth approaching the memorial aspects quietly and respectfully.
Clifford’s Tower today: Why it matters
Today, Clifford’s Tower is a protected historic monument managed by English Heritage and the clearest surviving part of medieval York Castle. Visitors can climb to the keep, explore the open interior, follow elevated walkways, listen to sound-based interpretation, and step onto a 360-degree viewing platform with York Minster and the city skyline in sight. It remains important not just for its architecture, but for the stories it holds about conquest, government, conflict, and memory.
Frequently asked questions about Clifford’s Tower history
It began as a Norman timber castle in 1068, was rebuilt in stone in the 1250s, served royal and prison functions, and became a ruin after a fire in 1684.
During anti-Jewish violence in York, members of the city’s Jewish community sought refuge at the castle and around 150 died in the siege and massacre.
It is one of the most significant anti-Jewish atrocities in medieval English history and remains essential to understanding the site respectfully.
The name is usually linked to Roger de Clifford, a baron executed there in 1322 after rebelling against Edward II.
The surviving keep dates mainly from the 1250s, when Henry III replaced the earlier timber structure with stone.
The wider castle precinct supported prisons, administration, and military use, including service during the English Civil War.
You can still read the tower’s four-lobed plan, chapel area, wall openings, stair routes, and the defensive mound it stands on.
Yes. A major conservation project reopened in 2022, adding internal walkways, improved interpretation, and a roof deck.
