He was, in every sense, the perfect baby. Prince George, who will one day be king and head of the Church of England, was calmness personified throughout his half-hour christening at St James's Palace.
It may have been "the first time he's been quiet all day", as his father, Prince William and Kate, joked before the ceremony, but the three-month-old prince showed he has the temperament for a big occasion.
Insiders said he barely raised a whimper of protest when the Archbishop of Canterbury trickled water from the River Jordan on his head, unlike his father, who cried during and after his own christening, prompting the Queen Mother to say: "He has a good set of lungs."
When George arrived for the ceremony, wearing a replica of the 172-year-old royal christening robe, there was even the smallest hint of a wave for his great-grandmother, the queen.
Kate, wearing a cream jacket and skirt by Alexander McQueen, had admitted to being "very excited" as she arrived for the baptism in the Chapel Royal of St James's Palace.
The couple had insisted that the service would be an "intimate" affair, but just how intimate only emerged when Kensington Palace released the guest list, which ran to 22 names.
Apart from the queen, the Duke of Edinburgh and the couple's parents and siblings, the only other guests were seven godparents with six spouses.
Zara Tindall, was the only member of the royal family on the list; she was joined by Oliver Baker and Emilia Jardine-Paterson, little-known friends from the Duke and Duchess's school and university days, and Julia Samuel, a former friend of Diana, Princess of Wales.
Earl Grosvenor, the 22-year-old son of the Duke of Westminster, was also a surprise inclusion, together with the rather more predictable choices of Jamie Lowther-Pinkerton, the duke and duchess's principal private secretary, and William van Cutsem, one of the duke's oldest friends.
George's part-time nanny, Jessie Webb, a former nanny to William, also attended the service though she was not listed as a guest.
The queen wore baby blue, appropriately, but for once she was upstaged when the boy of the moment made his entrance, carried by the Duke of Cambridge.
Just as he had done on the day he left hospital, the prince appeared to offer a slight royal wave as he was greeted by the queen, though some sleight of hand by the duke may have had more than a little to do with it. His Honiton lace robe was an exact copy of the now delicate original worn by Queen Victoria's eldest daughter, Victoria, in 1841 and used for all subsequent royal christenings including the queen, her children and grandchildren.
Using water from the Jordan, the archbishop made the sign of the cross on George's forehead and trickled water on his head three times. George, by all accounts, was completely unfazed.
"There were no screams or tantrums," said one insider. "He seems to have been perfectly behaved throughout."
The Duke and Duchess chose the hymns 'Breathe on Me', 'Breath of God' and 'Be Thou My Vision'. The latter was sung at the memorial service to mark the 10th anniversary of the death of Diana. It was another subtle way of ensuring a connection to the duke's mother.
After the service the christening party walked across a courtyard to Clarence House for a champagne reception hosted by the Prince of Wales and Duchess of Cornwall, where they were offered slices of one of the tiers of the duke and duchess's wedding cake, saved for the occasion.
The Dean of the Chapel Royal, the Rt Rev Richard Chartres, said to the Duke of Edinburgh: "Ah, he behaved!"
Jason Bell, the official photographer, appeared to be in for an easy ride, as George, now being carried by his mother, was still wearing the same placid expression as when he went into the chapel. Royal duties? They're child's play, it seems. (© Daily Telegraph, London)