The Prince of Wales and Camilla Parkers Bowles are honeymooning in Scotland after marrying at a private ceremony at Windsor Guildhall.
Thousands of wellwishers lined the streets of Windsor to catch a glimpse of the heir to the throne and his new bride.
The BBC's correspondents report on events.
STYLE="cross1">John Thorne : Balmoral : 2100 GMT
The people of this part of Aberdeenshire are used to more than a century and a half of royal arrivals and departures, but 100 or more local residents and tourists gathered by the royal bridge in Ballater to wave flags and shout greetings to the royal newlyweds.
Prince Charles was driving the car, his new wife in the passenger seat, waving a bouquet of flowers.
Now in Scotland, the Duke and Duchess of Rothesay, which is their traditional title north of the border, will honeymoon in the peace and tranquillity of the 50,000 snow-scattered acres of the Balmoral Estate.
STYLE="cross1">John Thorne : Balmoral : 1604 GMT
We think that Prince Charles and his new bride Camilla will be coming to Balmoral on their honeymoon for two weeks.
The legend is that in the market town of Balmoral, every shop here has the royal approval - a sort of Victorian town that has built up around the edge of Balmoral.
We believe that once they land at Aberdeen they'll come here into this estate of 50,000 acres and will stay in Burke Hall.
That is the small cottage in the grounds of the estate which was the favourite of the Queen Mother.
STYLE="cross1">Nick Witchell : Windsor : 1421 GMT
There was up to now uncertainty regarding Prince Charles's private life - there was uncertainty while he had a companion but was not married. Now he has a wife at his side who will become Princess Consort, and that has brought certainty to the situation.
We have seen a lot of Camilla today and we will see much more of her at set piece royal events from now on.
Instinctively I think she's the kind of person who enjoys meeting others - she's gregarious and finds this easy to do. Though on this sort of scale and on this sort of stage it must be difficult, and that's why she has held back until now.
STYLE="cross1">Sophie Raworth : Windsor : 1412 GMT
Handel's Water Music is playing as the couple make their way out onto the steps of the chapel, and a cheer goes up as they appear for those all-important photographs. Camilla is now surrounded by the other members of the Royal Family, looking a bit windswept and holding on to her hat.
This is the moment, and these are the pictures the world wants to see - Camilla in a family photograph, with the rest of the Royal Family.
STYLE="cross1">Gillian Ni Cheallaigh : Windsor : 1350 GMT
The newlyweds left Windsor Guildhall where they became man and wife to a crowd modest in size, but cheering enthusiastically. Wearing a demure but stylish knee-length cream-coloured outfit, Mrs Camilla Parker Bowles became the Duchess of Cornwall.
It was a short ceremony, a legal formality, made necessary because both are divorced, but it gave the public a chance to wish them well.
It was less the fairytale of royalty and more the reality of a modern monarchy. The bride has changed into a longer dress for the prayer service to bless their union in the more royal surroundings of St George's Chapel in the heart of Windsor Castle.
The hope of the couple is that by formalising their union, it may be more widely accepted by the British public.
STYLE="cross1">Lucy Wilkins : Windsor : 1326 GMT
There was an unplanned spectacle at one end of High Street after the civil ceremony in the form of a naked man.
He made a short dash from among the crowds who were being held back by police on horse and foot.
Quickly pushed to the ground and made to put his jeans back on, the smiling, unidentified - and probably chilly - man was swiftly escorted away, but not before press and the public had got a good look at him.
STYLE="cross1">Mark Whitaker : Windsor : 1304 GMT
It's a very good-natured crowd here. And obviously the opinion in Windsor is probably about 95 percent in favour of this royal wedding.
There are lots of people wearing Charles and Camilla T-shirts and everyone seems to be thoroughly enjoying themselves. Many were out all night and equipped with flasks to keep the chill away.
STYLE="cross1">Peter Hunt : Windsor : 1221 GMT
Arm in arm is how the world first saw the just-married couple. Their Royal Highnesses, the Prince of Wales and the Duchess of Cornwall waved and smiled, with identical Welsh gold wedding-rings on their fingers.
Emerging from the Guildhall just behind them were Camilla's new stepsons, William and Harry. Earlier, with the doors closed tight, Charles and Camilla, whose love affair has lasted three decades, tied the knot in private in the presence of close family members, except the Prince's mother and father.
But the Queen and her husband will be at St George's Chapel later when she will witness her son's marriage being blessed and meet the newest member of her family.
STYLE="cross1">Val Jones : Windsor : 1206 GMT
Coaches and limousines have been arriving here during the morning at the castle entrance just up the hill.
About now the Queen is sitting down to lunch with the foreign royal guests - kings, princes and princess from countries such as Bahrain, Holland, Norway, Saudi Arabia and Yugoslavia. About 750 guests have been invited to the service in St George's Chapel later this afternoon.
The Prime Minister will be there; so will the other main party leaders. But friends of the couple from the media and show-business have been invited too.
Actors Kenneth Branagh, Joanna Lumley, Prunella Scales and her husband, Timothy West, will be reading part of a Wordsworth poem during the service.
And Camilla's good friend, the writer Jilly Cooper, will be there, so will the author of Rumpole of the Bailey, John Mortimer, and comedy actors and writers Meera Syal and Sanjeev Bhaskar.
STYLE="cross1">Gillian Ni Cheallaigh : Windsor : 1149 GMT
The couple have just emerged from the Guildhall looking very happy. The cameras are going mad. The crowd are watching and waving union jack flags as the newly married couple drive away.
The guests at the private ceremony are now coming out too. They're posing for some photographs before they depart for Windsor Castle.
STYLE="cross1">Sophie Raworth: Windsor : 1127 GMT
The couple are arriving in the Rolls Royce, the Queen's Rolls Royce. This is the same car that Sophie and Edward used for their wedding. It's an extraordinary scene here - a royal couple arriving in a High Street to get married.
Here they come past all the offices and shops - Camilla Parker Bowles is smiling, beaming, and they are nearing the Guildhall. The cheers are starting.
STYLE="cross1">Peter Hunt : Windsor : 1101 GMT
A school jazz band was on hand to entertain the waiting well-wishers outside the guildhall. Camilla Parker Bowles, a name which will soon be redundant, left London for Windsor around ten this morning wearing a blue jacket.
How she'll be dressed in half-an-hour's time, when she arrives here for her town hall wedding, remains a tightly-guarded secret.
The crowd, squeezed into Windsor's streets, are expectant. They'll be rewarded for their patience when 15 members of the royal family - apart from Prince Charles's parents - turn up for the civil service, followed of course by the couple themselves.
In private, Charles and Camilla will tie the knot and become husband and wife. From that moment, she'll be the Duchess of Cornwall - the second most important woman in the land after the Queen.
STYLE="cross1">Nick Witchell: Windsor : 10:45 GMT
The path of Prince Charles and Camilla Parker Bowles to wedded union has been a long and, in many ways, a painful one - not least in the anguish caused to his first wife.
The couple will never escape entirely from the shadow of Diana, Princess of Wales, but it is their hope, and the hope of their friends and officials, that the public will accept this marriage and come to respect the new Duchess of Cornwall.
Royal officials know that it won't be altogether easy. The very fact that she is to be known as Duchess of Cornwall, rather than Princess of Wales - and in due course, when he succeeds to the throne, as Princess Consort rather than Queen Consort - is a clear acknowledgement of public sensitivities over her role and status.
In essence the problem is this: the monarchy's role is to unify. The institution now has, as a central figure, a woman who is seen in some quarters as divisive.
But the British monarchy is famously able to adapt, and the British people, the palace hopes, to show understanding and generosity.
STYLE="cross1">Simon McCoy: Windsor : 10:12 GMT
The sun is out and it's matching the mood of the crowd, which is getting into the party spirit in Windsor. It's rather an informal atmosphere here.
The scene for the civil ceremony is of course the Guildhall. They will travel down the road to St George's Chapel for a blessing conducted by the Archbishop of Canterbury Rowan Williams.
Camilla's son Tom Parker Bowles was a witness
And they will recite a prayer of penitence and much has been made of that in the run up to the wedding. After they are married, the media and the critics will have to move on.
STYLE="cross1">Lucy Wilkins: Windsor : 09:38 GMT
Windsor's streets around the Guildhall are completely crammed with people. Souvenir sellers, charity fundraisers, foreign television crews and babies in pushchairs are all jostling for space with royal fans, watched by hundreds of police.
The royal standard is flying from the castle parapet in a brisk wind, but the warm sun is keeping everyone in high spirits.
STYLE="cross1">June Kelly: Windsor : 09:18 GMT
Fortunately the weather is good and the crowds are down here enjoying the fine spring sunshine. I've just been speaking to some royal supporters wearing t-shirts bearing pictures of Charles and Camilla and slogans such as "Against All Odds." Another pictures Camilla in The Sound of Music.
And I've just seen a banner saying "Chaz and Millie - congratulations". I don't think I've ever heard them called that before.
STYLE="cross1">Peter Hunt : Windsor : 08:45 GMT
The crowds have been gathering since the early hours. There aren't vast numbers yet but more people may still come.
Then again, this isn't a re-run of Prince Charles's first, doomed fairytale wedding in the 1980s. Those waiting patiently will be rewarded around 1pm UK time with their first glimpse of the new Duchess of Cornwall.
Camilla's transformation will have taken place in private at a secular town hall wedding, inside Windsor's guildhall. Their Royal Highnesses, as they both then will be, will drive to the castle for a religious service.
Afterwards, Camilla, Charles, the Queen and others will stand on the steps of St George's Chapel - a vivid image signalling Camilla's entry into the royal family.
STYLE="cross1">Lucy Wilkins : Windsor : 08:22 GMT
It is a brilliantly sunny but freezing cold day at Windsor.
Police are stationed outside the Guildhall, facing a crowd of about 200 behind barriers already positioned for the best view in four hours' time.
Media people seem to be the most active group wandering the streets with cameras and microphones, while the gift shops are doing a quiet trade.
STYLE="cross1">Gillian Ni Cheallaigh : Windsor : 08:16 GMT
Shadows have cast a gloom over the preparations for this wedding, but on the day itself the sun has finally shone for the marriage of Prince Charles to Mrs Camilla Parker Bowles.
While the public has often been hostile about their relationship, in recent months support for them to be married has grown.
Still there were just a few staunch royal fans braving the cold all night on the streets outside the Guildhall.
A heavy police presence already lines the route the future king and his fiancée will take from Windsor Castle in a 1962 Rolls Royce, to the town hall where they'll become man and wife.
STYLE="cross1">Jeremy Cooke : New York : 04:09 GMT
It would be unfair to say there's no interest in the royal wedding here in America, but only the truly committed will be out of their beds at 6am Eastern Time to follow cable TV's live coverage of the event.
In contrast to the wedding of Prince Charles and the then Lady Diana Spencer, the Charles and Camilla show is hardly big box office here.
There have been stories in the newspapers, lots of them, but they're hardly the sort of publicity that the royal couple might have hoped for.
The latest twist in the Prince of Wales saga is for much of the American media a celebrity story treated in much the same way, though perhaps with less real enthusiasm, than the latest romantic tryst of the likes of say, Brad Pitt or Jennifer Lopez.
North of the border, Canadians who are of course still citizens of the British Commonwealth and will one day have Prince Charles as their king, it's a similar story of apathy.