In a post on Prince Charles saying he will be 'Defender of the Faith', Cranmer speculates that Prince Charles, when he becomes King, will be known as King George VII. It's not the first time I have heard that said. How patently ridiculous. He should be King Charles III and that should be the end of it.
I was never quite sure why the Queen's father became George VI when his real first name was Albert and was known to everyone as Bertie.