Prince Harry broke his silence because his new daughter’s choice of name caused a stir at Buckingham Palace.
The Duke of Sussex countered claims made by a palace source that he had not asked the Queen for the name – one she used to call her childhood.
Lilibet Diana Mountbatten-Windsor was born on Friday and will be Harry and Meghan’s second child – and the Queen’s newest great-granddaughter.
Prince Harry said he spoke to the Queen before choosing the name – and she “supported”.
His official spokesman said: “The Duke spoke to his family prior to the announcement, in fact his grandmother was the first family member he called.
“During this conversation, he shared her hope to name her daughter Lilibet in her honor.
“If she hadn’t supported them, they wouldn’t have used the name.”
A palace source previously said the BBC this is not the case – and the Queen has “never been asked” how it is used.
It comes amid the pressure in the relationship with Harry and Meghan – who have given up their royal duties. reports The Sun.
Lilibet was a name used by the Queen’s father, King George VI, her beloved late husband Prince Philip, and several other close friends.
Buckingham Palace officials are not supposed to know the baby was born until the announcement was posted on social media at 5 p.m.
And the palace previously declined to discuss when the queen was informed of the safe arrival of her newest great-grandson.