The idea of giving Charlotte the title of Duchess of Edinburgh began to be discussed publicly amid a “misunderstanding” that arose in the royal family. At the Palace, they were surprised by the decision of Charles not to transfer the honorary title of the Duke of Edinburgh to his brother Edward (before that, their father, the late Prince Philip, had worn it).
“It gives the public a hint of what the king is really thinking,” says a Mail Online source. “We are talking about promoting only those who are directly in line for the throne, and not those who are far from it.”