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Cardiff Castle boasts a long and rich history dating back to Roman times, so it's no wonder the site is rife with ghostly tales.
Written by Simon Williams
Cardiff Castle in Wales is one of the most actively haunted buildings in Britain, with reports of Victorian apparitions, Roman soldiers, and poltergeist activity spanning centuries. The Second Marquess of Bute and his wife are said never to have left their Gothic Revival home.
Cardiff Castle haunted tales aren't limited to just the Marquess and Marchioness. All manner of ghouls and spirits appear to dwell within its walls based on the accounts of eyewitnesses.
The most infamous phantoms lurking within Cardiff Castle's walls are the Second Marquess of Bute, John Crichton-Stuart, and his wife Lady Sophia Rawdon-Hastings. Lord Bute inherited the castle in 1848 and transformed the site into the lavish Gothic Revival mansion seen today. He and his wife spent much time at Cardiff Castle before their deaths in 1900 and 1917 respectively.
According to local legend, the couple never truly left their beloved home. Eerie apparitions fitting their descriptions have frequently been sighted across the castle grounds. The late Marquess is said to haunt the library, while the Marchioness Sophia prefers the Nursery and other rooms that were hers. Their ghostly forms have startled many unsuspecting visitors and staff members over the decades.
Disembodied voices, strange sounds, and poltergeist activity have also been attributed to the presence of the Marquess and Marchioness. The lord and lady seem to linger at Cardiff Castle even in death.
Staff members and tourists visiting the Cardiff Castle grounds have reported experiencing a wide range of unexplained phenomena:
Many claim the creepy events tend to spike at night after the castle is closed and seemingly deserted. Those brave enough have witnessed first hand that Cardiff Castle comes alive after dark with paranormal phenomena. The question is: who or what is causing it?
Nighttime at Cardiff Castle is when the site's supernatural forces seem most active. Once the last visitors have departed and darkness falls over the grounds, an entirely different realm awakens.
The castle's labyrinth of rooms and corridors become the playground for restless spirits. Phantom footsteps, eerie whispers, and faint screams resonate through the night. Many report hearing their name called in an unseen voice or feeling an icy breath on the back of their neck.
The hauntings appear concentrated in key areas of the castle that were important when still inhabited by the living:
These paranormal hotspots and others lead many to avoid Cardiff Castle at night entirely. For when darkness falls, the dead come out to continue living at the castle as they did ages ago.
The reports of ghosts and paranormal phenomena at Cardiff Castle have piqued the interest of psychic mediums over the years. Several reputable psychics who have visited the castle claim to have communicated with the resident spirits haunting the grounds.
Some of the ghosts they have allegedly encountered include:
| Ghost | Background | Spotted |
|---|---|---|
| Second Marquess of Bute | Original owner of the castle in the 19th century | Wandering the library and his old bedroom |
| Lady Sophia Rawdon-Hastings | Wife of the Marquess | Rocking in a chair in the Nursery |
| Roman Soldier | Dating back to the castle's origin as a fort | Marching in the tunnels beneath the castle |
| Medieval Girl | Who lived at the castle centuries ago | Playing in the castle courtyard |
The psychics assert these spirits and more still dwell at the castle, trapped between this world and the next. Many seem unaware they have passed on and continue acting as they did when alive. The psychics warn visiting Cardiff Castle could result in a supernatural encounter.
Despite its ghostly reputation, Cardiff Castle remains a popular tourist attraction that welcomes thousands of visitors each year.
While not guaranteed, visitors to Cardiff Castle may experience supernatural encounters like ghost sightings, temperature changes, and unexplained noises. Venturing into hotspots like the library and tunnels boost the chances. For the brave and curious, Cardiff Castle offers a thrilling possibility of ghosts and ghouls!
This article is part of the Most Haunted Wales series on Histories and Castles.
→ The Haunted Library of Gwydir Castle
→ The Most Haunted Castles in Wales
Cardiff Castle has one of the most well-documented haunting reputations of any building in Wales. Staff, security personnel, and visitors have reported apparitions, unexplained sounds, temperature drops, and poltergeist activity over many decades. The reports are not confined to one area: they come from the library, the chapel, the underground tunnels, and the nursery independently of one another. Whether these experiences have a supernatural cause or not, the consistency and volume of accounts makes Cardiff Castle one of the more credible haunted sites in Britain.
The most frequently reported presences are the Second Marquess of Bute, John Crichton-Stuart, and his wife Lady Sophia Rawdon-Hastings, who transformed the castle into a Gothic Revival mansion in the nineteenth century. The Marquess is most often associated with the library; the Marchioness with the nursery. A Roman soldier is reportedly seen marching in the underground tunnels, a reminder that the site was a garrison fort nearly two thousand years ago. A medieval girl has also been described playing in the courtyard by those who claim to have seen her.
Cardiff Castle has been continuously occupied for nearly two thousand years. A Roman fort was established on the site around 55 AD, with substantial walls still visible today. A Norman motte and bailey castle followed in the eleventh century. By the nineteenth century the castle had passed to the Bute family, who used their coal-trade wealth to commission William Burges to rebuild the interior as an extravagant Gothic Revival mansion. The result is one of the most ornate Victorian interiors in Britain, combining medieval romance with industrial-age wealth. Cardiff Council acquired the castle in 1947.
Cardiff Castle does periodically offer themed evening events and Halloween experiences that draw on its supernatural reputation. These are typically organised through the castle's own events programme and ticket availability varies by season. The castle is also regularly open to standard visitors during the day, and many of the reported paranormal hotspots, including the library, the chapel, and the tunnels, are accessible on the standard tour. For the most current information on ghost tours and evening events, check the Cardiff Castle official website or the Cardiff Council listings directly.
John Crichton-Stuart, the Second Marquess of Bute, inherited Cardiff Castle in 1848 at the age of six months. His family's coal interests made him one of the wealthiest men in Britain by the time he reached adulthood, and he used that wealth to transform Cardiff Castle and Castell Coch into showpieces of Victorian Gothic Revival architecture. He worked closely with the architect William Burges on both projects. Lord Bute died in 1900 and is buried at the family seat in Scotland, though local tradition holds that his spirit returned to the castle he loved and has never entirely left.
The library is considered one of the most active areas, associated with the ghost of the Second Marquess. The chapel records reports of organ music heard when no one is present and a white mist above the altar. The underground tunnels, built over the original Roman fortifications, are where the phantom Roman soldier is most commonly reported. The nursery is linked to the Marchioness and to the sound of a crying child. Security staff working overnight have reported activity in several of these areas at once, which contributes to the castle's strong overall reputation.
Published: 14 February 2026 | Last Updated: 12 September 2026
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