The newborn royal princess has spent her first night at Kensington Palace.
The name of Kate Middleton and Prince William’s second child – sister to Prince George – could be announced later and members of the Royal Family and the Duchess’s parents may visit.
The princess, who is fourth in line to the throne, was delivered at 08:34 BST on May 2nd at St Mary’s Hospital in London, and weighed 8lbs 3oz (3.7kg).
Tower Bridge was among several London landmarks lit up in pink in the new princess’ honor.
Trafalgar Square’s fountains and the London Eye were also illuminated on Saturday night to mark the birth.
Prince William and Kate Middleton will spend the next few days at Kensington Palace before they are expected to travel to their country home Anmer Hall on the Queen’s Sandringham estate in Norfolk.
Bookmakers have said Charlotte and Alice have emerged as the favorite names for the princess, followed by Olivia, Victoria and Elizabeth.
A spokeswoman for Ladbrokes said: “We’ve never known a day of royal speculation like it. Charlotte is the new favorite, but Olivia is the name on the nation’s lips.”