HOMEWARD BOUND — The Duke and Duchess of Cambridge have left the Lindo wing of St Mary’s Hospital in London with their first-born son, a future king of Great Britain, to head home to Kensington Palace.

The new mother wore a baby blue polka dot empire line dress by British designer Jenny Packham as she stepped from the Lindo wing with her son and Prince William. It was perhaps a sartorial tribute to Diana, Princess of Wales, who also wore a polka dot dress when she left the same hospital with the infant Prince William in June 1982.

“He’s got a good pair of lungs on him that’s for sure. We’re still working on a name for him,” said the Prince. “This is the first time that we’ve seen him so we’re having a proper chance to catch up.”

“It’s been very emotional, it’s such a special time,” Catherine told the waiting media. “I think any parent will know what this feeling is like.”

“He’s got [his mother’s] looks thankfully,” said William, to which his wife responded, “I don’t know about that.” She also added that William was the first to change the baby’s nappy.

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They then re-entered the hospital to put the baby in its carseat before departing for the palace, with William at the wheel.

The new baby boy’s first visitors were his maternal grandparents Michael and Carole Middleton, who arrived at the hospital in a London black cab, and were greeted on the steps of the Lindo Wing by its lead clinician Jonathan Ramsay. Prince Charles visited later, accompanied by the Duchess of Cornwall.

Since the birth of the as-yet-unnamed baby, the Cambridges been showered with congratulations from well-wishers ranging from President Obama to Miss Piggy and Kermit the Frog. The Muppets, in London filming their new movie, recorded a video message for the family.

Obama said: “The child enters the world at a time of promise and opportunity for our two nations. Given the special relationship between us, the American people are pleased to join with the people of the United Kingdom as they celebrate the birth of the young prince.”

In the video, Miss Piggy used the opportunity of the birth to ask Kermit: “Can’t you just hear the little pitter patter of tadpole feet?” To which Kermit replied in the negative, adding that “tadpoles don’t have feet.”

The occasion was celebrated across London today with the firing of guns in Green Park and at The Tower of London, and at Westminster Abbey, where the bells sounded out a full peal of 5000 changes — known as the Cambridge Surprise Royal — that lasted for more than three hours.