A year to the day since they announced they were expecting a baby, William and Kate left their little Prince at home to attend a white tie dinner at Buckingham Palace.
The new parents went to the dazzling annual Diplomatic Reception hosted by the Queen at her London residence.
Upon hearing the news that there would be no photos available from the event, fans took to Twitter to express their disappointment that they would not be able to see the Duchess of Cambridge, who was expected to wear a tiara for the first time since her 2011 wedding.
PHOTO FOR GALLERY
The annual event sees the 87-year-old monarch invite the 172 foreign ambassadors based in the capital to her official residence.
Her Majesty meets each member of the London Diplomatic Community at the largest event on the palace’s calendar.
Royal commentators have observed that William’s attendance at the event is preparing for his future role as King.
The Tuesday evening event is just one of the many engagements William and Kate have scheduled this week.
On Thursday night they will attend the royal premiere of Mandela: Long Walk to Freedom in London’s Leicester Square.
On Friday Prince William will present medals Irish Guard soldiers in Aldershot while Kate visits youngsters at Shooting Star House Children’s Hospice in Hampton.
Sunday will see William attend the British Military Tournament at Earls Court Exhibition Centre.
The event will raise funds for the three national charities of the National Armed Forces: ABF The Soldiers’ Charity, The Royal Navy & Royal Marines Charity and The Royal Air Force Benevolent Fund.
On Thursday 11 December the Duke and Duchess will attend the screening of David Attenborough’s Natural History Museum Alive 3D.
The couple will meet Sir David Attenborough and other attendees before watching the film which is due to be broadcast on Sky next year.