She added: “Kate and William have brought their daughter up to be very sure of who she is.
“Her great grandmother, the Queen, is no doubt a huge inspiration to Charlotte considering everything she has achieved and how inspirational she is to the whole nation.”
Charlotte, who turned six on Sunday, is also said to be the “spitting image” of the Queen looks wise.
A photo released to mark her birthday, showed the uncanny resemblance that royal fans were quick to point out.
The snap, taken by Kate, Duchess of Cambridge, was captured this weekend in Norfolk and shows the royal wearing a Rachel Riley floral dress.
Royal fans took to Kensington Palace’s post comment section to wish Charlotte a happy birthday.
One person wrote: “Happy birthday HRH Princess Charlotte.