Photos: Queen Elizabeth II lies in state after solemn procession

The coffin of Queen Elizabeth II, adorned with a Royal Standard and the Imperial State Crown and pulled by a Gun Carriage of The King's Troop Royal Horse Artillery, travels across Horseguards Parade Ground during a procession from Buckingham Palace to the Palace of Westminster, in London on September 14, 2022.

The coffin of Queen Elizabeth II is placed in Westminster Hall at the Palace of Westminster for the lying in state in London. The queen will lie in state for four days until her funeral Monday, with hundreds of thousands of people expected to file past. Eight pallbearers carried the oak and lead-lined coffin into Westminster Hall, placing it on a raised platform known as a catafalque.

King Charles III, Queen Consort Camilla and the rest of the royal family arrive at Westminster Hall from Buckingham Palace for her lying in state, in London, Britain, Wednesday, Sept. 14, 2022.

Britain's Prince William, left, Kate, Princess of Wales, second left, Prince Harry, and his wife Meghan, the Duchess of Sussex, pay their respects to Queen Elizabeth II as the coffin rests in Westminster Hall for her Lying-in State in London.

The public watch as the procession of the coffin of Queen Elizabeth II makes its way from Buckingham Palace to Westminster Hall, London.

Members of the public line the Queen Victoria Memorial and the Mall as King Charles III and members of the royal family walk with Queen Elizabeth II's flag-draped coffin as it is taken in procession on a Gun Carriage of The King's Troop Royal Horse Artillery from Buckingham Palace to Westminster Hall on September 14, 2022, in London, England.

David Armstrong-Jones, 2nd Earl of Snowdon, Prince William, Prince of Wales, King Charles III, Prince Richard, Duke of Gloucester, Anne, Princess Royal and Prince Harry, Duke of Sussex walk behind the coffin during the procession for the Lying-in State of Queen Elizabeth II on September 14, 2022 in London, England.

Life guards march ahead of the coffin of Queen Elizabeth II, adorned with a Royal Standard and the Imperial State Crown and pulled by a Gun Carriage of The King's Troop Royal Horse Artillery, during a procession from Buckingham Palace to the Palace of Westminster, in London.

The King's Body Guards of the Honourable Corps of Gentlemen at Arms, the Life Guards, the Blues and Royals and Yeomen of the Guard, stand guard around the coffin of Queen Elizabeth II, inside Westminster Hall, at the Palace of Westminster, in London.

Imperial State Crown placed on Queen Elizabeth II's coffin. Commissioned for her father king George VI’s coronation in 1937, the crown was worn by the queen at her coronation in 1953.

People sitting in Hyde Park, London, watch screens broadcasting the procession of the coffin of Queen Elizabeth II from Buckingham Palace to Westminster Hall.

The coffin of Queen Elizabeth II is flanked by Grenadier Guards and the King's Troop Royal Horse Artillery along the Women of World War II monument during a procession from Buckingham Palace to Westminster Hall in London.

The public watch as the procession of the coffin of Queen Elizabeth II makes its way from Buckingham Palace to Westminster Hall, London.

The coffin of Queen Elizabeth II is carried on a horse-drawn gun carriage of the King's Troop Royal Horse Artillery, during the ceremonial procession from Buckingham Palace for Westminster Hall, London.

The coffin of Queen Elizabeth II draped in the Royal Standard with the Imperial State Crown placed on top, arrives at Westminster Hall, London.

The coffin of Britain's Queen Elizabeth arrives at Westminster Hall from Buckingham Palace for her lying in state, in London, Britain, September 14, 2022.

The coffin of Queen Elizabeth II leaves Buckingham Palace for Westminster Hall, London.