Windsor Castle is one of Britain’s most remarkable royal landmarks — the oldest and largest occupied castle in the world. Rising above Windsor in Berkshire, the castle has stood for almost a thousand years as a fortress, royal residence, ceremonial centre and enduring symbol of the British monarchy.
The Norman Origins of Windsor Castle
The story of Windsor Castle begins after the Norman Conquest of England in 1066. William the Conqueror recognised the strategic importance of Windsor. The River Thames provided an important route through southern England, while the elevated position offered defensive advantages. An early motte-and-bailey castle was established during the first decade after the Conquest.
Henry II and the Transformation into a Stone Castle
During the reign of Henry II in the 12th century, Windsor underwent a major transformation. Timber defences were replaced or strengthened with stone structures, and the castle developed substantial towers, curtain walls and improved defensive features. Windsor increasingly combined military strength with royal accommodation.
King John, Henry III and Edward III
Windsor played an important role during the reign of King John and the political crisis surrounding Magna Carta. Henry III continued strengthening the castle, while Edward III, born at Windsor in 1312, had an especially close connection with it. Edward invested heavily in rebuilding and creating more comfortable royal accommodation, helping establish the castle as both fortress and palace.
St George’s Chapel and the Tudor Monarchs
One of Windsor Castle’s greatest treasures is St George’s Chapel. Construction of the present chapel began during the reign of Edward IV and continued under later monarchs. It became closely associated with the Order of the Garter and remains a working place of worship as well as a royal mausoleum. Henry VIII and Elizabeth I both maintained important links with Windsor, which increasingly became a centre of royal ceremony and court life.
Windsor Castle and the English Civil War
During the English Civil War, Windsor was occupied by Parliamentary forces and became an important military headquarters. King Charles I was held at Windsor before his execution in 1649. Following the Restoration of the monarchy in 1660, Charles II returned the castle to royal use and commissioned improvements to its interiors and accommodation.
The Georgian and Victorian Castle
George III and George IV transformed Windsor again. George III valued the castle as a royal home away from London, while George IV commissioned extensive refurbishment and rebuilding under architect Jeffry Wyatville. Queen Victoria later developed a particularly close relationship with Windsor, spending substantial periods there with Prince Albert and making it an important centre of royal family life.
Windsor Castle in the 20th Century
During the First World War, the Royal Family adopted the surname Windsor, strengthening the name’s association with the monarchy. During the Second World War, Windsor was regarded as a relatively secure royal location, and King George VI, Queen Elizabeth and their daughters spent significant periods there.
The Windsor Castle Fire of 1992
On 20 November 1992, a major fire broke out at Windsor Castle and spread through parts of the State Apartments. Firefighters worked for many hours to protect the historic building. The restoration that followed became one of the largest conservation projects undertaken at a British royal residence, and the castle subsequently reopened to visitors.
Queen Elizabeth II and Windsor Castle
Queen Elizabeth II had a particularly strong association with Windsor. The castle was one of her official residences and became increasingly important during the later decades of her reign. Royal ceremonies, receptions and family occasions took place there. St George’s Chapel also became closely associated with the modern Royal Family, including the funeral service of Prince Philip in 2021 and the committal of Queen Elizabeth II in 2022.
The State Apartments and St George’s Hall
The State Apartments contain paintings, furniture, armour and decorative objects reflecting centuries of royal history. St George’s Hall is particularly impressive, with its Gothic interior used for important ceremonial occasions and state banquets.
The Round Tower
The Round Tower is one of Windsor Castle’s most recognisable features. Its origins are medieval, although it has been remodelled over the centuries. Its prominent position demonstrates the defensive importance of Windsor’s elevated site.
The Long Walk and Windsor Great Park
The Long Walk provides one of the most famous views towards Windsor Castle. Stretching south from the castle through Windsor Great Park, the avenue is popular with walkers and photographers. The wider park contains historic landscapes, woodland, open grassland, gardens and important wildlife habitats.
Windsor Castle Today
Today Windsor Castle remains both a working royal residence and a major historic attraction. Visitors can explore areas of the castle when open to the public, including the State Apartments and St George’s Chapel. Royal ceremonies and official events continue to maintain the castle’s connection with the modern monarchy.
A Castle That Has Survived Almost a Thousand Years
Windsor Castle is remarkable not simply because of its age, but because of its continuous relationship with British royal history. It has survived medieval conflict, civil war, changing architectural fashions, royal generations and the devastating fire of 1992.
From William the Conqueror’s Norman fortress to the modern royal residence, Windsor Castle represents almost a millennium of British history. Its walls, towers, chapel and surrounding landscape form a living historical record that continues to evolve.
Windsor Castle is a fortress, a palace, a royal home and a living piece of British history.
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Copyright Simon Ben — 12 September 2026, 22:38 BST
