Pippa’s first child, Arthur, also shares a name with one of Kate’s children.
The Duke and Duchess of Cambridge’s third child, Louis, has the middle name Arthur.
Pippa and Kate’s mom, Carole Middleton, also shares the middle name Elizabeth.
In Charlotte’s case, the tradition can also be seen as a nod to her great-grandmother Queen Elizabeth.
Prince Harry and Meghan Markle also honored the monarch with the name of their daughter, Lilibet Diana.
