The moment happened outside Westminster Abbey and comes less than two months ahead of Charles’ coronation.

Members of the protest group Republic held signs that read “Not My King.”

A gathering welcoming Britain's King Charles was divided into two distinct groups, with the smaller and louder group protesting against him and the institution he heads.

Buckingham Palace sidesteps controversy over gem acquired during age of Empire.

The King and Queen Consort Camilla will be crowned on May 6 at Westminster Abbey.

King Charles III paid tribute to his late mother and addressed the cost-of-living crisis in his first Christmas Day message as monarch.

While greeting people at Westminster Hall to honor Queen Elizabeth II, Charles stopped to pick up someone's cane after it fell in front of his feet.

Charles and his wife Camilla, the Queen Consort, stopped by the soccer club as part of their visit to Wales.

A man has been arrested on suspicion of assault after an egg was allegedly hurled towards King Charles III during a visit to a town center

King Charles III has welcomed South African President Cyril Ramaphosa to London for the first state visit of his reign

King Charles III, who turns 74 on Monday, is celebrating his first birthday as Britain's reigning monarch.

The Mounted Band of The Household Cavalry performed outside Buckingham Palace for Charles' 74th birthday on Nov. 14.

The United Kingdom will have another reason to celebrate the coronation of King Charles III, for the government has declared a special public holiday to mark the occasion

Both Charles and his wife Queen Camilla will be crowned at the ceremony.

The photo of King Charles was taken in Buckingham Palace.

The late queen spoke of Charles being a champion of conservation and the arts, a great charitable leader as well as a wonderful father.

Their visit surprised mourners who were in line to view the late queen's coffin.

The queue to see the queen lying in state has reached 5 miles, leaving people to wait for over 24 hours. Officials have had to stop people from joining the line causing an unofficial line to form.

King Charles III wants to protect the planet for future generations -- a passion he has highlighted throughout his decades as monarch-in-waiting.

ABC News chief foreign correspondent Ian Pannell and ABC News royal contributor, Victoria Murphy, on what the future holds for the new King Charles III.

With the crown, Charles inherits a great responsibility, but also a great wealth.

With Queen Elizabeth II’s death, experts are raising questions about the monarchy’s legacy and its future.

King Charles III appeared to be frustrated by a leaky pen during a signing ceremony at Northern Ireland's Hillsborough Castle.

Past colonization, slavery and treatment of Indigenous people have led to protests, disassociations and calls for reparations from some nations in the Commonwealth.

King Charles and Queen Consort Camilla greeted the public in Belfast today.

The coffin of Queen Elizabeth II was brought to her official Scottish resting place at St. Giles Cathedral on Monday by her children in a military procession from the palace of Holyroodhouse.

ABC News’ Linsey Davis spoke with ABC News royal contributor Omid Scobie on King Charles III's willingness to slim the monarchy amid rising costs.

The people of Scotland lined the route from Holyrood to St. Giles Cathedral to pay their respects to the longest-reigning British monarch.

"I know that the Scottish parliament and the people of Scotland share with me a profound sense of grief at the death of my beloved mother," the king remarked.

King Charles III's former press secretary Patrick Harverson talks to “Good Morning America” about his former employer’s work ethic and more.

Paddy Harverson, a former communications director for the royal family, says the new king is “the best prepared monarch we’ve ever had.”

The newly declared king and his wife, Queen Camila, head to Edinburgh to honor his late mother after meeting with both houses of Parliament at Westminster.

King Charles III, accompanied by his wife Camilla, Queen Consort, spoke in front of some 1,200 people gathered inside Westminster Hall in London.

As King Charles III's ascends to the throne, nations such as Jamaica, Grenada, and Antigua and Barbuda are considering cutting ties with the British monarchy.

James Longman and Andrew Morton break down the queen’s past and the new king’s future on "This Week."

ABC News' Martha Raddatz interviews U.S. Ambassador to the U.K. Jane Hartley on "This Week."

Jane Hartley, the U.S. ambassador to the United Kingdom, said she believes the newly crowned King Charles will be a "bridge to the future."

King Charles is now also the head of the Commonwealth of Nations, a voluntary association of 56 independent and equal countries.

As Britain enters a new age under a new sovereign, the country continues to mourn the late Queen Elizabeth.

The Royal Family is mourning the loss of their matriarch while King Charles steps up as the new leader of the British Commonwealth.

While King Charles is stepping up into his duties, the rest of the Royal Family has made public appearances by shaking hands and accepting flowers from the public outside of Windsor Castle.

For many Americans, all they have ever known is Queen Elizabeth II. Now the U.S. must navigate this new relationship with King Charles III.

Cheers of “God save the King” rang out in front of Buckingham Palace celebrating Charles III’s ascension to the throne. This, as day two of a 10-day period of national mourning commences.

Camila becomes the Queen Consort and William and Kate were passed on the titles of Prince and Princess of Wales.

King Charles III was formally proclaimed king by the Accession Council in the State Apartments of St James’s Palace on Saturday.

Charles was formally proclaimed king during a ceremony at St. James's Palace with more proclamations that followed in the City of London, Scotland, Wales and Northern Ireland.

King Charles III made his first public appearance in London Friday and addressed the nation after his mother's death.

Paying tribute to the late Queen Elizabeth II, King Charles III addresses the Commonwealth and people across the world in his first message as the monarch.

King Charles III, who was just three years old when his mother became Queen, has always been acutely aware of his destiny.

ABC News' Linsey Davis spoke with royals reporter and commentator Emily Andrews about Queen Elizabeth II's funeral and what people can expect of King Charles III's reign.