People magazine reported that Lilibet’s parents invited King Charles, Queen Consort Camilla, Prince William and Catherine, Princess of Wales to the event but they did not attend.

This announcement marks the first time the title of princess has been used publicly for Lilibet. She is entitled to it under the usual protocol as a male-line grandchild of the monarch.

When Lilibet was born in June 2021, her great-grandmother, Queen Elizabeth II, was still on the throne. It was only when her grandfather, Charles, became monarch that she became entitled to be known as princess.

Although the Buckingham Palace website currently doesn’t reflect this, a source told CNN that the site will be updated in due course.