Now, Prince Charles is married to Camilla Parker-Bowles. Camilla who should be referred to as HRH (Her Royal Highness) The Princess of Wales. But instead, she goes by HRH The Duchess of Cornwall, which is the feminine version of one of Charles's other titles.
The title of Duke of Cornwall is traditionally held by the eldest son of the reigning
According to townandcountrymag.com, the reason Camilla isn't referred to as the Princess of Wales is actually quite simple.
Although Diana was not the first Princess of Wales, the title became strongly associated with her.
Marlene Koenig, a royal expert and author, explains the decision was also made to avoid 'stirring up ill feelings' toward Camilla.
When she married Prince Charles, 'Camilla was not popular or well liked, [though] this has changed a lot since the marriage as Camilla has taken on a lot of patronages and Charles is a lot happier,' Koenig says. 'Still, [there was] a lot of tension and anger among a certain element of the population, so it was decided that Camilla would be styled as the Duchess of Cornwall, even though, of course, she is the Princess of Wales.'
Although opinion surrounding Camilla has shifted quite dramatically, the style change stuck.
More recently, controversy surrounding Camilla's title when Prince Charles becomes King has arisen.
When the couple got married, stated that Camilla would adopt the style of Princess consort when Charles ascends to the throne, even though she would legally be Queen consort.
However, in 2018, Clarence House removed the statement about Camilla being styled as , and when asked by a member of Parliament, Constitutional Affairs Minister Christopher Leslie said that, 'This is absolutely unequivocal that she automatically becomes queen when he becomes king.'