Britain's Queen Elizabeth and Prince Phillip smile as they arrive for the Grand Launch the Royal Institution of Great Britain in central London in this May 28, 2008 file photo.Queen's Elizabeth and Prince Philip's grandson Prince William will hold his wedding to Kate Middleton on April 29, 2011.

Britain's Prince Charles and Camilla, Duchess of Cornwall smile during a visit to Australia House to mark Australia Day, in central London in this January 26, 2011 file photo. Prince Charles and Camilla, Duchess of Cornwall are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011,according to local media.

Britain's Prince Harry (L) and Chelsy Davy attend the friendly international rugby union match between England and Australia at Twickenham in London in this November 7, 2009 file photo. Prince Harry and Chelsy Davy are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011,according to local media. 
 

The parents of Kate Middleton, Michael and Carole (L), make a statement on the engagement of their daughter to Prince William, outside their home near the Berkshire village of Bucklebury in this November 16, 2010 file photo.Michael and Carole are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Japanese Crown Prince Naruhito (R) and his wife Crown Princess Masako wave at Tokyo's Haneda airport, in this May 21, 2007 file picture. Crown Prince Naruhito and Crown Princess Masako are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Britain's Laura Parker Bowles arrives for her marriage to Harry Lopes at St Cyriac's Church in Lacock, Wiltshire, in this May 6, 2006 file picture. Laura Parker Bowles, the daughter of Britain's Camilla Duchess of Cornwall, is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011,according to local media.

Executive producer and singer Elton John (L), and producer David Furnish pose for photographers as they arrive for the British premiere of "Gnomeo And Juliet" at Leicester Square in London in this January 30, 2011 file photo. Elton John and David Furnish are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Britain's Prime Minister David Cameron speaks during his address to the Confederation of British Industry (CBI) conference in London in this October 25, 2010 file photo. David Cameron is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Mr Bean, played by British actor Rowan Atkinson, poses in the shallows of the surf at Bondi Beach in Sydney, in this March 7, 2007 file picture. Atkinson is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.

Soccer player David Beckham (L) and his wife Victoria pose at a party at the Museum of Contemporary Art in Los Angeles, in this July 22, 2007 file picture. The Beckhams are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Singer James Blunt performs at at the Live Earth concert at Wembley Stadium, in this July 7, 2007 file picture. Blunt is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media. 
 

Britain's Prince Edward (R) and his wife, Countess Sophie of Wessex, arrive to attend a Pontifical Mass at Monaco's cathedral, in this November 19, 2005 file picture. Prince Edward and Countess Sophie are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media. 

Britain's Prince William (2nd R) poses for a photograph with his search and rescue crew (L-) Sergeant Ed Griffith, Flight Lieutenant Alan Connor and winch operator Sergeant Paul Jones, in front of their Sea King helicopter at RAF Valley in Anglesey, after a training exercise at nearby Holyhead Mountain, in Wales in this March 31, 2011 file photo. The crew is rumoured to be among the 1,900 guests invited to attend the wedding of William and Kate Middleton on April 29, 2011, according to local media. Photograph taken on March 31, 2011.
 

British actress and Gurkha activist Joanna Lumley talks to media prior to hearing a statement by Home Secretary Jacqui Smith on the Gurkhas' right to stay in the UK, outside the Houses of Parliament in London in this May 21, 2009 file photo. Joanna Lumley is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Crown Princess Victoria of Sweden (R) and her husband Prince Daniel (L) visit the Chateau de la Grange castle at the Domaine de la Grange in Savigny-le-Temple, near Paris, in this September 27, 2010 file photo, as part of an official visit to France. Crown Princess Victoria and Prince Daniel are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.

Britain's Chief Rabbi Jonathan Sacks speaks at a meeting of religious leaders at St Mary's University College Chapel at Twickenham in west London in this September 17, 2010 file photo. Chief Rabbi Jonathan Sacks is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Pippa Middleton, sister of the fiancee of Britain's Prince William, Kate Middleton, attends the wedding of Katie Percy and Patrick Valentine at Alnwick Castle in Alnwick, northeast England in this February 26, 2011 file photo. Pippa is rumoured to be among the 1,900 guests invited to attend the wedding of
Britain's Prince William and Kate Middleton on April 29, 2011,according to local media.
 

Britain's Princess Eugenie (R) and Princess Beatrice (L) leave after a Christmas Day service at St Mary Magdalene Church on the Royal estate at Sandringham, Norfolk, in east England, in this December 25, 2010 file photo. Princess Eugenie and Princess Beatrice are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.

 

Britain's Prince Andrew, The Duke of York and Princess Anne (R), Princess Royal arrive for an Easter Sunday church service in Windsor, in this April 4, 2010 file photo. Prince Andrew and Princess Anne are rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Saudi Arabia's King Abdullah arrives at Heathrow Airport in west London in this October 29,2007 file photo. King Abdullah is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011, according to local media.
 

Bahrain's King Hamad bin Isa al-Khalifa attends the opening session of the thirteenth Gulf Cooperation Council (GCC) Summit at Bayan Palace in Kuwait City in this December 14, 2009 file photo. King Hamad bin Isa al-Khalifa is rumoured to be among the 1,900 guests invited to attend the wedding of Britain's Prince William and Kate Middleton on April 29, 2011,according to local media.