Many have been waiting for news of a royal baby ever since the wedding of the Duke and Duchess of Cambridge a year ago, but there could be a few reasons why the couple is in no rush to start their family.

ABC News said historian Robert Lacey has a new theory and believes the couple will wait at least two years until having a royal baby.

The Brits reportedly decided to change the succession laws last year so if Will and Kate have a girl first, and not a boy, she would eventually be queen.

Younger brothers would no longer take the throne ahead of older sisters.

ABC News said the Queen is head of state of 16 countries and they’ve all got to negotiate wording, which will take time.

Until that law is changed, some think the Duke and Duchess will not produce a child.

Also, if they have twins and a girl is followed by a boy, the boy is the future king under the present rules, according to the report. 

Then if they change the law in time and the succession could reportedly be taken away from the boy and given to the girl.

Others believe another reason why we won’t see the former Kate Middleton with a baby bump anytime soon is because the couple doesn’t want to take the spotlight away from the Queen’s Diamond Jubilee this year.

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The Queen will sail Cleopatra-style down the Thames – sitting on a gold throne on the Royal Barge for her Diamond Jubilee river pageant, it was revealed today.

The June 3 extravaganza, involving a seven-mile, 1,000-boat flotilla and 20,000 people, is being billed as “the world’s greatest outdoor party”.

Or, as London Mayor Boris Johnson rather bizarrely declared: “It will be a kind of Dunkirk – except more successful and more cheerful.”

Her Majesty will be joined by a number of other royals, including the Duke and Duchess of Cambridge, who will also have gilded thrones.

But organisers admitted today the £10.5million pageant – funded by private donations with the taxpayer picking up the policing and clean-up costs – carries major security risks.

Up to 5,500 police supported by 7,000 stewards will be drafted in to control more than a million sight-seers expected to line the river to catch a glimpse of the spectacular float-past.

Met Deputy Assistant Commissioner Stephen Kavanagh said they would be using a mixture of visible and “discreet” policing, with officers on boats and on land.

He added: “We will carry out specific searches of boats using sniffer dogs. We will also have specialist officers searching beneath bridges, below the water, and lining the shore.”

It will be one of the very rare occasions that the senior royals – the Queen, Philip, Charles, Camilla, William, Kate and Harry – all travel together.

Pageant CEO Michael Lockett said: “It was deemed that this was the most secure way of handling events under these particular circumstances.

“There will be numerous vessels in support of the Royal Barge and they’ll also have the Royal Squadron behind them.”

Fifty giant screens will beam out pictures of the event, which starts at 2.40pm after the Queen takes a tender from the Royal Yacht Britannia to her barge – a specially-built vessel called the Spirit of Chartwell, at Cadogan Pier.

Organisers hope to recreate scenes not seen on the river for more than 300 years – since the reign of Charles II, when all boats were made of wood.

Thousands of musicians and singers will be aboard 10 accompanying barges.

They will blare out everything from Bollywood anthems, folk, classical music, military marches, Beatles tunes… and even the James Bond theme as they pass the MI6 building.

Vessels large and small, including a procession of boats used in the 1940 Dunkirk evacuation, will sail within yards of each other under 14 bridges.

Despite extensive practice runs, organisers admit there are likely to be a few “minor bumps”. But they hope to avoid any major prangs by grouping together vessels of silmilar size.

Chief Harbourmaster David Phillips said: “We’ve asked the skippers and at least one member of each crew to refrain from drinking until their boat is safely moored.

“We don’t want the day spoiled by excessive drinking.”

And while most people on the boats have been asked to wear life jackets, the royals won’t be covering their finery.

A spokesman said: “The whole thing is about showcasing the Queen and celebrating the moment.”

Pageant Chairman Lord Sailsbury revealed how one adviser had suggested Her Majesty should wear safety gear while getting on and off the barge.

He said he replied, “Are you going to tell her, or am I?” adding, “We’d better think of another way of doing it”.

Ahead of the Royal Barge will be the 94ft rowbarge Gloriana, powered by 18 oarsmen including Olympic gold medallists Sir Matthew Pinsent and Sir Steve Redgrave, paralympic athletes and disabled British servicemen.

The event will finish at about 5.30pm when the last music barge stages a Last Night of the Proms-style tribute – playing Land of Hope and Glory, Rule Britannia and, finally, the national anthem.

Today the Queen was ruling the waves in slightly less regal style as she took a ride in a “Yellow Duck” amphibious vehicle on visit to the Merseyside maritime museum in Liverpool.

She was also given a mono-rail tour round Chester Zoo.

And for once she didn’t have to worry about Philip making one of his legendary gaffes – as they were introduced to some particularly thick-skinned characters.

The Duke was whisked off to the elephant enclosure, while she was taken to see the rhinos.

The Queen, wearing a coral dress and coat by Stewart Parvin and matching hat by Rachel Trevor-Morgan, arrived to cheers from hundreds of well-wishers.

Gloria Ackerley, 65, from Delamere, Cheshire, accompanied by daughter Liz, 40, and granddaughter Daisy, four, said: “We just want to see The Queen.

“She’s so special and the Jubilee is such a historic occasion.”

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, pose for the cameras during a reception before the Lunch For Sovereign Monarchs at Windsor Castle. (May 18, 2012)

A shorter version of this story appears in the June 4, 2012 Celebrity 100  issue  of Forbes Magazine.

It’s been a year since the wedding and Prince William and Kate, Duke and Duchess of Cambridge, have chosen a regal property to call home. Kensington Palace, the royal residence that served as Princess Diana’s home in her final years, will become their permanent London nesting spot starting next year, after asbestos is reportedly removed and updates made to the plumbing and electrical wiring. But while the pair will arguably be Kensington Palace Gardens’ most famous residents, they certainly won’t be the street’s richest.

In the past decade, Kensington Palace Gardens has become a sought-after address among some of the world’s richest people. Nicknamed London’s Billionare Row, mansions on the coveted street fetch an average of £6,000 per square foot, according to Tim Wright of Knight Frank, making it England’s most expensive road.

“There is no other street like this in London that is made up of entirely detached mansions of which many back up onto the royal gardens,” says Wright. Due to a bevy of both embassies located on the street, security is tighter here than nearly anywhere else in London. “If you are not meant to be in there you won’t get in there because everyone is vetted by security guards.”

Private residents along the guarded avenue have been busy doing renovations of their own as well. Multi-story subterranean playgrounds boasting indoor pools and auto museums are common extensions undertaken on Kensington Palace Gardens.

Here’s who Will and Kate will call neighbors.

Prince William and his wife Catherine will sail with Queen Elizabeth II on her royal barge as it leads a huge flotilla down London’s River Thames for her diamond jubilee, officials said Thursday.

The young royals, credited with breathing new life into a monarchy previously seen as out of touch and beset by scandals, will add extra star power to one of the key events of a four-day jubilee holiday.

The royal household said the couple, officially known as the Duke and Duchess of Cambridge, will already be on the barge to meet the 86-year-old monarch when she boards the vessel at a pier in west London on June 2.

As well as William and Kate, who wed last year in a ceremony watched by two billion television viewers, the vessel will also carry William’s brother Prince Harry, the queen’s husband Prince Philip, William’s father Prince Charles and his wife Camilla.

The more than seven-mile long jubilee river procession on June 2 will be “one of the largest flotillas ever assembled on the river,” organisers said, featuring 1,000 vessels ranging from small pleasure boats to military ships.

Organisers hope that up to one million spectators will line the banks of the Thames to watch the pageant from 1430 GMT as part of four days of celebrations for the queen’s 60 years on the throne.

In new details announced Thursday, they said a floating belfry with specially cast bells will head the procession, while a luxury cruiser called the Spirit of Chartwell is undergoing a lavish makeover to become the royal barge.

At its prow will be a gilded sculpture of the Neptune-like Old Father Thames with classical dolphins, while the royal coat of arms will be formed from more than 500,000 gold-coloured buttons on a red velvet banner.

Other ships, carrying a total of about 20,000 people, will include historic vessels, fireboats, tugs, herring drifters and eel barges, vessels that rescued British troops from Dunkirk during World War II.

There will also be 265 rowed boats, with one crewed by Olympic gold medallists.

The London Philharmonic Orchestra will play pieces relevant to the places its own barge passes, so as it approaches the headquarters of MI6, Britain’s external intelligence agency, it will strike up the James Bond theme.

Jazz trumpeter Guy Barker will lead a group performing Beatles songs, while other ensembles on ten music barges will play Scottish and English folk tunes, Bollywood numbers and military marches.

Some 5,500 police officers will be on duty along with 7,000 stewards.

The four days of celebrations will also include the lighting of over 2,000 beacons across the Commonwealth, a “Big Lunch” with street parties around Britain, and a service of thanksgiving at St Paul’s Cathedral.