1) Crowns, obviously
St. Edward's Crown is just one of the crowns King Charles III will wear during his coronation. It's pictured here at Westminster Abbey in London on June 4, 2013, during a service to celebrate the 60th anniversary of the coronation of Queen Elizabeth II.
King Charles will be crowned with St. Edward's Crown, named for the last Anglo-Saxon king of England, Edward the Confessor. He lived in the 11th century, but the crown was made some 600 years later in 1661, for King Charles II.
It's solid gold, a foot tall, capped with velvet, lined with ermine and encrusted with rubies, amethysts, sapphires, topazes, tourmalines and a garnet. It's heavy — nearly 5 pounds. "It weighs a ton!" recalled the late Queen Elizabeth II, who wore the St. Edward's Crown for her 1953 coronation.
It's worn only a short time by British monarchs at their coronations. It'll be in use for about an hour on Saturday and then be put back into storage at the Tower of London.
But it may be the most recognizable of the royals' many crowns: Its silhouette is part of the coat of arms on British passports, police badges and mailboxes.
Charles has a "working crown" to wear on his way out of Westminster Abbey: the Imperial State Crown, made in 1937. The monarch wears this crown to the opening of Parliament too. It's one of as many as seven crowns that may grace the king's head.
The Imperial State Crown sits on display during the State Opening of Parliament in the House of Lords in London on May 10, 2022.
Camilla, the queen consort, will be crowned with a newly remodeled version of Queen Mary's Crown, originally made in 1911. It has a silver frame, lined with gold, and is covered with 2,200 diamonds (minus one very controversial diamond; scroll down for more on that). It's smaller and lighter, weighing only a little over a pound.
2) Regalia — royal bling
The Imperial State Crown, an orb and a scepter are on display during the state funeral of Queen Elizabeth II in London on Sept. 19, 2022.
The Coronation Regalia is a selection of sacred and secular items that hold symbolic meaning for the monarchy. It includes orbs, scepters, swords and rings, which are all part of Britain's famous Crown Jewels.
The king will hold the Sovereign's Orb in his right hand during the service. It's a 17th-century golden sphere adorned with precious jewels and a cross on top, meant to represent the Christian world. Charles will also be presented with two scepters during his coronation: Both are golden rods. One is known as the Sovereign's Sceptre with Cross. It features a heart-shaped diamond nestled below a cross, symbolizing power and justice. The other features a dove and is known as the Rod of Equity and Mercy.
While the United Kingdom isn't the only European country to have a royal family, its royals are the only ones who use regalia in coronations. Other monarchies, such as Norway and the Netherlands, have regalia on display but don't use it in ceremonies.
3) Key moment: the anointing
The anointing screen, handmade by the Royal School of Needlework, is blessed in front of a small congregation in the Chapel Royal at St. James's Palace in London on April 24. The most important moment in the coronation is the unction, the sacred act of anointing a monarch with holy oil, which signals that the monarch has been chosen by God. It will take place behind the anointing screen.
After a procession into Westminster Abbey and presentation of the regalia, the more than 1,000-year-old coronation ceremony will get underway. First, the public — even people watching on TV from home — will be asked to swear allegiance to King Charles. There may be trumpets and exclamations of "God save the king!" (In past coronations, it was only the aristocrats in the room who were asked to do this.)
Then the monarch puts his hand on a Bible and takes an oath to uphold the law and be a "faithful Protestant." (In addition to being Britain's head of state, he's also the head of the Church of England.)
After the oath, the king's glittering golden robes will be removed, and he'll sit on an ancient wooden chair in front of a high altar. (Fun facts: The BBC calls the chair the oldest piece of furniture still used for its original purpose in the U.K. And even though it has been refurbished over the centuries, the Coronation Chair still bears graffiti, including this cheeky carving: "P. Abbott slept in this chair 5-6 July 1800.")
What happens next is the absolute heart of the ancient rite: the anointing.
"It all culminates in the crown, but that can only happen because he has been anointed with holy oil," says Alice Hunt, a historian of monarchy at England's University of Southampton. "That's the moment when the monarch is understood to actually become king. Something changes at that moment."
The archbishop of Canterbury will pour consecrated oil from a 17th-century golden ampulla into a 12th-century spoon. The oil is harvested from the Mount of Olives in Jerusalem. (This time it's vegan, but in past coronations it reportedly contained additives from the glands of small mammals and the intestines of whales.)
"He'll be anointed probably in three places — hands, breast and head," Hunt explains. "It's the most important part and also the most provocative. Even monarchs have said, 'What happens to me when I'm anointed?'"
But it's a secret religious rite that has never been televised. There has been lots of speculation about whether that might change this time around. But a new screen has been prepared to shield it from view, as at past coronations.
4) Thousands of guests, some controversial
In this photo illustration, a souvenir replica invitation marking the coronation of King Charles III is seen on April 29 in London.More than 2,200 people have been invited to the ceremony inside Westminster Abbey. (That's down from more than 8,000 people invited to Elizabeth's 1953 coronation.) The guest list includes representatives from more than 200 countries — including first lady Jill Biden, but not her husband — and as many as 100 heads of state.
No U.S. president has ever attended a U.K. coronation. For centuries, no other crowned royals did either. The ceremony was supposed to be between a monarch and his or her people. But in a break with tradition, Charles has invited fellow royals from Europe and Arab states.
In a move that might anger some China hawks, Chinese Vice President Han Zheng is also attending. Han was the architect of Beijing's 2019 crackdown on pro-democracy protesters in Hong Kong.
Another guest shows how much times have changed: Michelle O'Neill, the vice president of the Irish nationalist party Sinn Fein. The party is linked to the Irish Republican Army, a paramilitary group that used a bomb to kill King Charles' grand-uncle, Lord Louis Mountbatten, in 1979. It has been 25 years since the Good Friday Agreement ended decades of violence and affirmed Northern Ireland as part of the U.K. Sinn Fein recently won the most seats in the Northern Ireland Assembly.
5) Parade — rain or shine! But rain is forecast
A nighttime rehearsal in central London for the coronation of King Charles III, which will take place this weekend.Charles has opted for a shorter parade route than his mother did, and a different vehicle.
Still, the British military says more than 6,000 members of its personnel will take part — making this its biggest ceremonial operation in 70 years. To prepare, they've been rehearsing in the middle of the night all week.
Up in front will be the Cross of Wales, which contains two small shards of wood from what some believe was the original cross on which Jesus was crucified. But in a nod to modern Britain's myriad faiths, the procession will also include leaders of Jewish, Hindu, Sikh, Muslim and Buddhist groups. They'll reportedly deliver a greeting to the king in unison.
Charles and Camilla will depart Buckingham Palace in the Diamond Jubilee State Coach — which looks ancient but is actually only 10 years old. It's pulled by horses but also has electric windows, air conditioning and hydraulic stabilizers to prevent it from swaying.
They'll make their way along The Mall — a ceremonial promenade, not a shopping center — to Trafalgar Square and then past the Whitehall government buildings and Parliament to Westminster Abbey. Thousands or possibly millions will likely line the nearly 1.5-mile route.
After the ceremony, they'll reverse direction and return along the same path, but in a different carriage, the Gold State Coach. It's encrusted in gold leaf and is so heavy, weighing more than 4 tons, that it needs eight horses to pull it and can still move only at a walking pace.
If all goes well, the parade will end with a military flyover and royal wave from the Buckingham Palace balcony.
Protesters wait for the arrival of King Charles III and Camilla, the queen consort, in Liverpool, England, on April 26. Dissenters will be among the cheering crowds when Charles travels to his coronation. More than 1,500 protesters will be dressed in yellow for maximum visibility, and they plan to gather along the parade route to chant "Not my king" as the royal procession goes by.
The anti-monarchy group Republic says it's mobilizing more than 1,000 protesters in Trafalgar Square, around a statue of King Charles I — who was beheaded in 1649.
"It's time to get rid of the monarchy," Graham Smith, Republic's leader, told NPR. "We will be chanting, 'Not my king!' when Charles goes past."
On Wednesday, ahead of the coronation, U.K. authorities imposed the Public Order Act, which makes it a criminal offense to disrupt public transit or lock oneself to landmarks, as well as increases police powers to search suspects and seize property.
But the government's security chief says coronation protesters will be allowed along the parade route.
7) Page boys — but apparently no page girls
Page boys sit together before lining up for the arrival of Queen Elizabeth II at the Palace of Westminster for the State Opening of Parliament on Oct. 14, 2019.
The king's grandson Prince George will be among the pages of honor at Westminster Abbey. George — who is second in line to the throne — is believed to be the youngest future king to play an official role at a coronation. He may help carry the regalia into Westminster Abbey, ahead of the king.
In a break with tradition, some of Camilla's grandchildren — who are not strictly royals — will also play a role in a ceremony, possibly in holding a canopy over the queen consort during her anointing. Camilla's grandsons, Louis, Gus and Freddy, will reportedly take part, as well as her grandnephew Arthur Elliot.
Some British media outlets initially reported that it was Camilla's wish for all her grandchildren — including the girls — to play a role in the ceremony. But later reports list only the boys.
These are Camilla's grandchildren through her first marriage, to Andrew Parker Bowles. So a blended family will be on display at the heart of Britain's monarchy.
8) New tunes, and a few celebs
King Charles III laughs with American singer Lionel Richie and his girlfriend, Lisa Parigi, during a Wednesday garden party at Buckingham Palace in celebration of Saturday's coronation. Richie is among those performing at Sunday's Coronation Concert.
Twelve pieces of music commissioned and composed for the coronation will debut during the ceremony Saturday. They include six pieces for orchestra, five choral works and a piece for the organ. Plus a new coronation anthem by Andrew Lloyd Webber, the man behind popular musicals Cats and The Phantom of the Opera.
In a nod to Charles' late father, Prince Philip, who had Greek heritage, the Byzantine Chant Ensemble will perform music based on the Bible's Psalm 71 during the presentation of regalia.
A gospel choir will also perform.
And for the first time at any coronation, girl choristers from around the U.K. will sing alongside the legendary boy sopranos of the Choir of Westminster Abbey.
"There's some symbolic resonance in bringing in girls to sing in this space that is really sort of at the heart of the monarchy," says Rebekah Peeples, a sociologist at Princeton University who is writing a book about all-boy choirs. "These are groups that were born in a history of exclusion, because girls and women couldn't sing in public for centuries."
It's not just professional musicians getting involved either.
The Choir of the Earth — a virtual group of singers who came together online during the COVID-19 pandemic — has made a recording of the "Hallelujah" chorus from Handel's Messiah to commemorate Charles' coronation.
Hundreds of singers in dozens of countries recorded themselves on their cellphones, and the choir's producers mixed their voices together. They'll post the final product on the choir's website Friday night.
Then on Sunday, the Coronation Concert will take place at Windsor Castle, with a lineup including singers and American Idol judges Lionel Richie and Katy Perry; U.K. acts like Take That, Freya Ridings and Alexis Ffrench; and Italian tenor Andrea Bocelli.
9) Commonwealth countries
Commonwealth troops wait on Thursday to receive commemorative coins during a military parade in Pirbright, England, for representatives of the Commonwealth taking part in the coronation of King Charles III.
Charles isn't just the king of the U.K.'s four constituent countries, England, Scotland, Wales and Northern Ireland. He's also the head of state of 14 Commonwealth countries. They include Canada, Australia, New Zealand and several island nations in the Caribbean and Pacific.
And he's the ceremonial leader of what's known as the Commonwealth, a voluntary association of more than 50 independent member states, many of which were once part of the British Empire but no longer retain Britain's monarch as their head of state. Today the organization holds sporting competitions and is a tool of Britain's soft power to promote peace, development and democracy.
Leaders, representatives and members of the armed forces of some Commonwealth countries will be seen on Saturday. They will display their countries' flags and represent "the diversity and traditions of the UK and Commonwealth Armed Forces," the British government's website says.
Even though much of the Commonwealth will be present in some form at the ceremony, some members in recent years have sought to become republics. In 2021, Barbados removed Queen Elizabeth II as its head of state and replaced her with a president. Jamaica is making plans to follow suit. It's unclear whether either country is sending a representative to Charles' coronation.
10) Quirky merch
Coronation plates and cups are displayed for sale in a gift shop in London on April 24.
Alongside the regular Union Jack-themed knickknacks, London's street vendors are also selling mugs, flags, plates and thimbles with King Charles' face on them. Royal superfans are even making their own merchandise, from "Coronation Flakes" cereal to King Charles-themed tea cozies. Nespresso has limited-edition coffee capsules called Jewels of Nespresso to commemorate the event.
Not all the swag is meant to be a celebration of King Charles though. There's coronation toilet paper, T-shirts that read "Not my king" and other items with unflattering and exaggerated caricatures of Charles.
With the U.K.'s recent economic woes, retailers and hoteliers are hoping the coronation brings a much-needed boost.
It's a mixed bag for the souvenir vendors so far. Some along Regent and Oxford streets in central London told NPR they're barely selling any of the coronation-themed merchandise they've stocked. But Fernando Santos, working at a kiosk opposite Big Ben, says his sales have picked up.
"Today I'm selling mugs and flags — 100 pieces today," he said. "King Charles is very good for my business."
Two sights you won't see
Meghan, Duchess of Sussex, is seen in London on June 3, 2022, during celebrations to mark the Platinum Jubilee of Queen Elizabeth II. The wife of Prince Harry is not expected to be seen at Charles' coronation.
She has a prior engagement with a 4-year-old.
After much speculation, Buckingham Palace confirmed last month that Prince Harry will attend his father's coronation but his wife, Meghan, Duchess of Sussex, will not. The couple lives in California, and Saturday is also the fourth birthday of their son, Prince Archie.
There has been a very public rift between the couple and the rest of the royal family in recent years. In January, Harry released a memoir called Spare in which he detailed a physical altercation with his brother, Prince William. Last year, the couple also made a Netflix documentary that claims the royal family did not defend them when they were attacked in the press.
2) The Kohinoor diamond
The crown of Queen Elizabeth the Queen Mother, the mother of Queen Elizabeth II, contains platinum and the famous Kohinoor diamond, along with other gems.
One of the most glittering of the Crown Jewels is a 105-carat diamond originally found in India some 800 years ago. Over the centuries, it passed through Mughal, Persian and Afghan hands before being taken from a 10-year-old Sikh prince and given to Queen Victoria.
Why the Kohinoor diamond won't make an appearance at King Charles III's coronation
Legend holds that calamity befalls any male monarch who wears the Kohinoor, which means "mountain of light" in Persian. So it's normally worn by queen consorts — in their coronation crowns. Tradition holds that Camilla would wear it Saturday.
Except India wants it back. So do other countries whose rulers once had it. Even the Taliban claim it's theirs.
So for now, the royals have decided to keep the Kohinoor on display in the Tower of London — a giant, sparkling reminder of imperial plunder that's too sensitive to parade around.