Cardiff Castle

Cardiff Castle stands in the centre of the Welsh capital, behind an outer wall that follows the perimeter of a Roman fort — an ancient military installation that has shaped the castle's footprint across nearly two millennia of successive occupation. The castle today is three buildings in one: Roman fort walls, a Norman shell keep, and a suite of Victorian Gothic Revival apartments of extraordinary decorative ambition. Understanding all three layers is part of what makes Cardiff Castle one of the most historically dense and visually surprising castle visits in Britain.

The Roman fort, established in the 1st century AD, was part of the network of military installations that secured Roman control of southern Wales. Its rectangular defensive perimeter — the same shape as all Roman forts — was built in stone that survived for a millennium, waiting for the Normans who arrived in 1066 to recognise the reusable defensive infrastructure and build their castle inside it. The decision to occupy the Roman perimeter rather than build independently gave the Norman castle its distinctive rectangular outer wall, which is still the castle's enclosing boundary today.

The Norman shell keep was built c.1091 by Robert Consul, Earl of Gloucester — illegitimate son of Henry I of England, powerful lord of the Welsh marches, and builder of several of the most significant Norman castles in Wales. The twelve-sided form on the original Roman mound is the finest surviving example of the shell-keep type in Wales: not a solid tower house but a ring of stone wall on top of an earthen mound, enclosing a courtyard with residential buildings against the inner face. The irregular twelve-sided polygon, rather than a circle or square, reflects both the shape of the mound and the Earl's architectural programme.

The keep's most famous resident was a prisoner. Duke Robert of Normandy — William the Conqueror's eldest son, who had fought at the First Crusade and arguably had the strongest hereditary claim to the English throne — was captured by his brother Henry I at the Battle of Tinchebray in 1106 and spent the rest of his life imprisoned. The last eight years of his life (1126–1134) were spent at Cardiff Castle's keep, where he died at approximately eighty years of age. His long imprisonment, and the loss of Normandy to his brother, are among the defining events in the early development of the English and French crowns.

The castle passed through various medieval and early modern hands before arriving with the Bute family in 1766, at which point its history takes a direction that has nothing to do with military or political strategy. The Bute family's wealth derived from the development of Cardiff Docks: from the 1830s, the 2nd and 3rd Marquesses of Bute invested in the infrastructure to export South Wales coal through Cardiff, building the docks, the railway connections, and the commercial systems that made Cardiff into the world's largest coal-exporting port by the late 19th century. The income this generated was extraordinary — the 3rd Marquess of Bute was described by contemporaries as the richest man in Britain.

He chose to spend a significant portion of this fortune on Cardiff Castle, commissioning the architect William Burges to transform the medieval structure into a Gothic Revival fantasy. The work proceeded between 1865 and 1881 and produced a suite of Victorian rooms of astonishing decorative richness: the Arab Room with its gilded Islamic geometric ceiling; the Chaucer Room with its medieval literary narrative paintings; the Banqueting Hall; the Clock Tower with its allegorical staircase of the hours; the Bachelor Bedroom. Each room was treated by Burges as a separate total-design project, drawing on a different historical source — Islamic, medieval English, Venetian Gothic — and executing it with the detail and resources that Bute's coal income could sustain. The combination of medieval historical scholarship and Victorian decorative ambition produced rooms that have no close equivalent in any other British castle.

Burges and the Marquess's collaboration at Cardiff Castle was one of the great Victorian patron-architect relationships — comparable to the Marquess's other commission to Burges, the rebuilding of [Castell Coch](/castles/wales/castell-coch) as a romantic fantasy castle on a woodland hill north of the city, which used the same Gothic vocabulary at a smaller and more focused scale. The two buildings together define Welsh Victorian Gothic Revival in the same way that Schinkel's Stolzenfels defines German Rhine Romanticism.

The city of Cardiff received the castle from the Bute family as a gift in 1947, and it has been managed as a public attraction since. The GYG South Wales Three Castles Tour (t1137827) combines Cardiff Castle with [Castell Coch](/castles/wales/castell-coch) and [Caerphilly Castle](/castles/wales/caerphilly-castle) in a full day from Cardiff — the three castles together covering the Norman fortress, the Victorian Gothic fantasy, and the great 13th-century concentric fortification of Caerphilly, which is the largest castle in Wales.