Thank you, this is the type of situation that should be avoided in the future. Right now I see the BRF in a transitional stage in terms of titles & roles for younger royals. But if Charles, or William, or whoever, decides a new model will be followed, new Letters Patent should be formulated to avoid confusion, ruffled feathers, or concerns that some grandchildren are being treated unfairly. After all, the current LP in force was issued one hundred years ago and formalized George V's own effort to streamline the monarchy.