Prince William and Catherine, Duchess of Cambridge smile as they travel to Buckingham Palace in the 1902 State Landau, along the Procession Route, after their wedding in Westminster Abbey.

Prince William, and Kate Middleton exchange rings before the Archbishop of Canterbury, Rowan Williams, during their wedding ceremony.

Queen Elizabeth II shakes hands with the Dean of Westminster as she arrives at the West Door of Westminster Abbey.

Kate Middleton arrives with her sister, Maid of Honour Philippa Middleton at the West Door of Westminster Abbey.

Maid of honour Pippa Middleton arrives with page boys and ring bearers at Westminster Abbey.

Prince William looks at his bride Kate Middleton, as she holds her father Michael Middleton's hand during the royal wedding ceremony at Westminster Abbey.

Prince William waves as he arrives with his brother Prince Harry at the West Door of Westminster Abbey for his wedding.

Farrier Lance Corporal of Horse Chris McCabe fashions a horse shoe during a media event at the Household Cavalry Mounted Regiment's Hyde Park barracks in London, Friday, April, 15. The mounted regiment will provide close the escort for the major members of the British Royal family during the upcoming Royal Wedding of Prince William and Kate Middleton.

A farrier fits a horse shoe in the forge as the Household Cavalry prepares for the royal wedding of Britain's Prince William and Kate Middleton, at Hyde Park Barracks in central London, on April 15.

Corporal of Horse Andy Radford prepares to mount his horse in the parade square at Hyde Park Barracks on April 15 in London, England. Members of the Household Cavalry gave a behind the scenes tour of many of the duties performed as part of their daily routine, including special preparation ahead of the forthcoming Royal Wedding. The Household Cavalry will perform several ceremonial duties during the summer, including the Royal Wedding on April 29, and the Queen's Birthday Parade (Trooping the Colour) in June.

Prince William's fiancee Kate Middleton greets members of the public during a visit to the University of St Andrews in Scotland on February 25, 2011. During the visit they viewed the surviving Papal Bull (the university's founding document), unveiled a plaque, and met a selection of the University's current staff and students to mark the start of the Anniversary. Prince William and Kate Middleton attended the university as students from 2001 to 2005 and began their romance there.

Kate Middleton is surrounded by media and security as she meets the public during a visit to the University of St. Andrews in Scotland on February 25, 2011.

Prince William applaudes, as Kate Middleton holds up a champagne bottle after naming a new lifeboat at the Trearddur Bay Lifeboat Station on the island of Anglesey, Wales on Thursday, Feb. 24. The visit had been highly anticipated because the couple have kept such a low profile since announcing their engagement in November, making only one other prior appearance at a charity event.

Prince William and Kate Middleton greet well wishers after after naming a new lifeboat at the Trearddur Bay Lifeboat Station on the island of Anglesey, Wales on Thursday. The visit had been highly anticipated because the couple have kept such a low profile since announcing their engagement in November, making only one other prior appearance at a charity event. They plan to marry April 29 at Westminster Abbey with just under 2,000 guests attending.

Britain's Prince William and his fiancee Kate Middleton wave to wellwishers following a naming ceremony for the new Royal National Lifeboat Institution's (RNLI) Atlantic 85 lifeboat 'Hereford Endeavour' at the RNLI Lifeboat Station in Anglesey, near Bangor in Wales on Thursday.

Left: Prince William and his fiancée Kate Middleton pose for photographers during a photocall to mark their engagement, in the State Rooms of St James Palace, central London, Nov. 16. Right: Kate Middleton and Prince William lookalikes aka Kate Bevan and Andy Walker pose for photographers with hand knitted figures depicting Prince William and Kate Middleton on their wedding day during the UK toy annual trade show in central London, Jan. 25.

An employee packages replicas of the British royal engagement ring at a jewelry factory in Yiwu, Zhejiang province, January 12. Chinese manufacturers are cashing in on the British royal wedding craze as they churn out tens of thousands of replica royal engagement rings for the world.

Chinese workers inspect royal wedding chinaware plates featuring images of Britain's Prince William and Kate Middleton, at the Tri-Ring Group Corporation workshop in Yulin, southwest China's Guangxi region, January 10, where a total of 16,008 pieces of porcelain are due for delivery on January 15 to Britain. The second-in-line to the throne Prince William will marry his university sweetheart Kate Middleton on April 29 in what is likely to be the biggest British royal wedding since his late mother Diana married Prince Charles in 1981.

A combination picture shows a Chinese made replica of the British royal engagement ring, left, displayed at a jewelry factory in Yiwu, Zhejiang province, January 12, and the original engagement ring given by Britain's Prince William to his fiance Kate Middleton in London on November 16, 2010.