Two days after the birth of his child, William attended Westminster Abbey for the traditional ANZAC Day service to honour New Zealand and Australia’s war dead.
As William met Sir Jerry Mateparae, New Zealand High Commissioner to the UK, the Dean of Westminster joked about the eagerly anticipated name, saying: “Jerry would like it to be Jerry.”
The Duke replied: “Jerry’s a strong name.”
Asked how mother and baby is, William said: “They’re very well, thanks.”
He said they are “in good form, luckily”, adding: “Sleeping’s going reasonably well so far, so he’s behaving himself which is good news.”
The new prince – who is fifth in line to the throne – was born at the Lindo Wing of St Mary’s Hospital in Paddington at 11.01am on St George’s Day.
The Duke and Duchess of Cambridge introduced him to the world just seven hours after Kate had given birth.
Weighing 8lb 7oz, the baby’s name has not yet been revealed, with Arthur being the bookies’ favourite.
Arthur was one of the names of Prince Charles and the Queen’s father George VI.
Kensington Palace said the new prince’s name will be announced in “due course”.
The names of his siblings, Prince George and Princess Charlotte, were announced two days after they born.
William and Kate have been caring for their two-day-old son at Kensington Palace, where they are settling into life as a family of five.
The Duke returned to royal duties on Wednesday by joining Prince Harry and Meghan Markle at the ANZAC Day service in London.