^I'm fairly certain (without looking it up) that Camilla gave up the possibility of being Queen as part of the pre-nup.
Probably the same article you read.
Her Royal Highness the Duchess of Cornwall but never Queen Camilla ;Charles excited...boys delighted; ROYAL WEDDING.
Byline: ROB SINGH
CAMILLA Parker Bowles is to be known as HRH the Duchess of Cornwall The Duchess of Cornwall is the title held by the wife of the Duke of Cornwall. Duke of Cornwall is a non-hereditary peerage held by the British Sovereign's eldest son and heir. once she marries Prince Charles - and will never be known as Queen.
When Charles accedes to the throne she will be known as Princess Consort.
The move to allow Charles to be King without his wife being Queen will have to be approved by a special Act of Parliament passed when he takes the throne.
The Queen approved her new daughter-in-law taking the style Her Royal Highness, making her the second most senior royal woman after the Queen.
But the option, which was technically available, of being Princess of WalesNoun 1. Princess of Wales - English aristocrat who was the first wife of Prince Charles; her death in an automobile accident in Paris produced intense national mourning (1961-1997)
Diana, Lady Diana Frances Spencer, Princess Diana
..... Click the link for more information., was never seriously considered.
"Legally she is to be the Princess of Wales but she has chosen not to use that title," said a senior royal aide."