Prince Harry told Queen Elizabeth II that he and Meghan Markle hope to call their baby Lillibet ahead of the official announcement, their spokesperson told Granthshala.
The rare official intervention comes after a palace source told the BBC the Queen had “never been asked” for permission to use a surname that had been within the family since childhood.
However, Granthshala The Duke and Duchess of Sussex are said to have not moved forward with Lillibet if the 95-year-old monarch had not extended support.
Harry and Meghan’s spokesperson revealed Granthshala: “The Duke spoke with his family before the announcement, in fact his grandmother was the first member of the family he called.
“During that conversation, they shared their hope of naming their daughter in honor of Lilibet. If she hadn’t been helpful, they wouldn’t have used the name.”
The Queen was first given the nickname Lilibet by her father when she was a child and could not pronounce “Elizabeth”.
However, it persisted into later life and was famously used by husband Prince Philip.
Harry and Meghan’s spokesperson said in their official announcement on Sunday that their baby’s name was a tribute to the monarch.
Lilibet Diana Mountbatten-Windsor was born on Friday, June 4 at 11.40 a.m. local time in Santa Barbara.
Following the birth, Harry and Meghan said in a statement: “On June 4, we were blessed with the arrival of our daughter Lily.
“He is more than we can imagine, and we are grateful for the love and prayers we have received from around the world.
“Thank you for your continued kindness and support during this special time for our family.”
A spokesperson for the couple said: “It is with great pleasure that Prince Harry and Meghan, The Duke and Duchess of Sussex, welcome their daughter, Lilibet “Lily” Diana Mountbatten-Windsor, into the world. Lily was born on Friday, Occurred on June 4 at 11:40 a.m. in the trusted care of doctors and staff at Santa Barbara Cottage Hospital in Santa Barbara, CA.
“She weighed 7 pounds 11 ounces. Both mother and baby are healthy and healthy, and are settling down at home.
“Lily is named after her great-grandmother, Her Majesty The Queen, whose family surname is Lilibet. Her middle name, Diana, was chosen to honor her beloved late grandmother, The Princess of Wales.
“This is the second child for the couple, who also have a two-year-old son named Archie Harrison Mountbatten-Windsor. The Duke and Duchess thank you for your warm wishes and prayers as they enjoy this special time as a family. Huh.”
Following the announcement, the Royal Family Twitter account posted: “Congratulations to The Duke and Duchess of Sussex on the birth of Lillibet Diana! The Queen, The Prince of Wales and The Duchess of Cornwall and The Duke and Duchess of Cambridge are delighted. News.
“Lilibet is Her Majesty’s 11th great-granddaughter.”