Royals celebrate Queen Elizabeth II's Diamond Jubilee

Britain's Kate, Duchess of Cambridge, right, and her husband Prince William, second right, talk to the Prince Albert II, third left, and Princess Charlene, second left, of Monaco, during a reception in the Waterloo Chamber, before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle, west of London, on May 18, 2012. A glittering lunch for the world's sovereigns celebrated the Diamond Jubilee of Britain's Queen Elizabeth II.

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Queen Anne Marie and King Constantine of Greece speak with Queen Elizabeth II as they arrive at a lunch in honor of her Diamond Jubilee at Windsor Castle on May 18, 2012, in Windsor, England.

Queen Elizabeth II, right, looks on as the Duke and Duchess of Cambridge chat with King Hussein and Queen Rania of Jordan as guests arrive at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle on May 18, 2012.

Prince William, right, talks with his wife, Kate, Duchess of Cambridge, and his brother Prince Harry during a reception in the Waterloo Chamber before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle, west of London, on May 18, 2012.

Prince Harry talks to Prince Al Saud of Saudi Arabia during a reception in the Waterloo Chamber, before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch, at Windsor Castle on May 18, 2012, in Windsor, England.

Prince William and his wife, Kate, Duchess of Cambridge, pose for pictures during a reception in the Waterloo Chamber before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle, west of London, on May 18, 2012.

Jordan's King Abdullah II, left, and Queen Rania arrive at Windsor Castle, west of London, on May 18, 2012, for a Sovereign's Jubilee Lunch hosted by Britain's Queen Elizabeth II.

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Queen Anne Marie of Greece talks with Sheikha Mozah Bint Nasser Al-Missned of Qatar during a reception in the Waterloo Chamber, before her Sovereign Monarchs Jubilee lunch at Windsor Castle on May 18, 2012, in Windsor, England.

Britain's Prince Andrew, Duke of York, talks to the Emir of Qatar Sheikh Hamad bin Khalifa Al Thani before the Queen's Monarchs Jubilee lunch at Windsor Castle on May 18, 2012.

Princess Alexandra speaks to Emperor Akihito of Japan and Empress Michiko of Japan during a reception in the Waterloo Chamber before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle on May 18, 2012, in Windsor, England.

Britain's Kate, Duchess of Cambridge, left, talks to King Simeon of Bulgaria and his wife, Margarita, before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle on May 18, 2012.

Prince William, Duke of Cambridge, right, talks to his brother, Prince Harry, before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle on May 18, 2012.

Britain's Prince William, left, and his wife, Kate, Duchess of Cambridge, second left, speak with Thailand's Crown Prince Maha Vajiralongkorn, right, and Princess Srirasmi, second right, at Windsor Castle, west of London, on May 18, 2012, during a Sovereign Monarchs Jubilee lunch hosted by Britain's Queen Elizabeth II.

Britain's Prince Andrew, Duke of York, talks to the Emir of Qatar Sheikh Hamad bin Khalifa Al Thani before Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle on May 18, 2012.

Britain's Queen Elizabeth II (front row, sixth left) poses for a formal picture with her royal guests before a Sovereign Monarchs Jubilee lunch in the Grand reception room at Windsor Castle, west of London, on May 18, 2012. The group photograph attendees are (front row, left to right) HM the Emperor of Japan, HM the Queen of the Netherlands, HM the Queen of Denmark, HM the King of the Hellenes, HM the King of Romania, HM Queen Elizabeth II of Great Britain, HM the King of Bulgaria, HM the Sultan of Brunei, HM the King of Sweden, HM the King of Swaziland, and HH the Prince Hans-Adam II of Liechtenstein. The middle row (left to right): HSH the Prince of Monaco, HRH the Grand Duke of Luxembourg, HM the King of Lesotho, HM the King of the Belgians, HM the King of Norway, HH the Emir of Qatar, HM the King of Jordan, HM the King of Bahrain, and HM The Yang di-Pertuan Agong of Malaysia. The top row (left to right): HH Nasser Mohamed Al-Jaber Al-Sabah of Kuwait, HH the Crown Prince Mohammed bin Zayed of Abu Dhabi, HRH the Crown Prince of Yugoslavia, HM the King of Tonga, HRH the Crown Prince of Thailand, HRH Princess Lalla Meryem of Morocco and HRH Prince Mohammed bin Nawaf bin Abdulaziz Al Saud of Saudi Arabia.

Queen Elizabeth II greets Emperor Akihito, second left, and Empress Michiko, left, of Japan at Windsor Castle, west of London, on May 18, 2012, during a Sovereign Monarchs Jubilee lunch hosted by the British monarch.

Beatrix, Queen of the Netherlands, is greeted by Queen Elizabeth II as she arrives at a lunch for Sovereign Monarchs held in honor of the British monarch's Diamond Jubilee at Windsor Castle on May 18, 2012, in Windsor, England.

Britain's Queen Elizabeth II, third right, and Prince Philip, right, greet Prince Albert II of Monaco, second left, and Princess Charlene, left, at Windsor Castle on May 18, 2012, for a Sovereign Monarchs Jubilee lunch.

Britain's Queen Elizabeth II, right, greets King Carl Gustaf and Queen Silvia of Sweden at Windsor Castle, west of London, on May 18, 2012, during a Sovereign Monarchs Jubilee Lunch.

Princess Lalla Meryem of Morocco is greeted by Queen Elizabeth II as she arrives at a lunch for sovereign monarchs held in honor of the queen's Diamond Jubilee at Windsor Castle on May 18, 2012.

Britain's Queen Elizabeth II, right, greets King Albert II of Belgium and Queen Paola at Windsor Castle, west of London, on May 18, 2012, during a Sovereign Monarchs Jubilee lunch.

Emir Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah of Kuwait is greeted by Queen Elizabeth II and Prince Philip, Duke of Edinburgh, as he arrives at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle on May 18, 2012.

King Hamad bin Isa Al Khalifa of Bahrain and Princess Sabika are greeted by Queen Elizabeth II and the Duke of Edinburgh as they arrive at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle, in Windsor, England, May 18, 2012.

The Queen of Denmark is greeted by Queen Elizabeth II and Prince Philip, Duke of Edinburgh, as she arrives at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle in Windsor, England, May 18, 2012.

The Sultan of Brunei and his wife are greeted by Queen Elizabeth II and Prince Philip, Duke of Edinburgh, as they arrive at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle on May 18, 2012.

Crown Prince Mohammed bin Zayed Al Nahyan of Abu Dhabi is greeted by Queen Elizabeth II and Prince Philip, Duke of Edinburgh, as he arrives at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle on May 18, 2012.

Britain's Queen Elizabeth II and Prince Philip greet Norway's King Harald, left, and Queen Sonja, second left, at Windsor Castle, west of London, on May 18, 2012, during a lunch for sovereign monarchs held in honor of the queen's Diamond Jubilee.

Prince Mohammed bin Nawaf bin Abdulaziz Al Saud of Saudi Arabia is greeted by Queen Elizabeth II at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle on May 18, 2012.

Britain's Queen Elizabeth II and Prince Philip greet King Mswati III, left, of Swaziland at Windsor Castle, west of London, on May 18, 2012, during a Sovereign Monarchs Jubilee lunch.

Emir of Qatar Sheikh Hamad bin Khalifa Al Thani and Sheika Mozah bint Nasser Al-Missned of Qatar is greeted by Queen Elizabeth II and Prince Philip, Duke of Edinburgh, as they arrive at a lunch for sovereign monarchs of the world, held in honor of the queen's Diamond Jubilee, at Windsor Castle on May 18, 2012.

Britain's Queen Elizabeth II, center, welcomes Grand Duke Henry, left, and Grand Duchess Maria Teresa, right, of Luxembourg to Windsor Castle, west of London, on May 18, 2012, for a sovereign monarchs lunch held in honor of the queen's Diamond Jubilee.

King Letsie III of Lesotho, center, and Queen Mesenate Mohato Seeiso, right, are greeted by a member of household staff on arrival at Windsor Castle, west of London, on May 18, 2012, for a Sovereign Monarchs Jubilee lunch hosted by Britain's Queen Elizabeth II.

King Michael I of Romania and Crown Princess Margarita arrive at a lunch for sovereign monarchs in honor of Queen Elizabeth II's Diamond Jubilee at Windsor Castle on May 18, 2012, in Windsor, England.

Alexander, Crown Prince of Yugoslavia, and Katherine, Crown Princess of Yugoslavia, arrive at a lunch for sovereign monarchs in honor of Queen Elizabeth II's Diamond Jubilee at Windsor Castle on May 18, 2012, in Windsor, England.

Malaysia's Constitutional Monarch Yang di-Pertuan Agong XIV, center, arrives at Windsor Castle, west of London, on May 18, 2012, for a lunch for sovereign monarchs held in honor of Queen Elizabeth II's Diamond Jubilee.

Prince Albert II of Monaco and Princess Charlene of Monaco arrive at a lunch for sovereign monarchs in honor of Queen Elizabeth II's Diamond Jubilee at Windsor Castle on May 18, 2012, in Windsor, England.