On his wedding day, Prince William was given the title of Duke of Cambridge by his grandmother, the Queen. The Queen often gives members of her family a new royal title when they marry, and the title also extended to William’s new wife. Kate subsequently became known as Kate, Duchess of Cambridge.
By marrying a Prince of the United Kingdom, Kate did technically become a Princess on her wedding day in 2011.
In fact, on all of her children’s birth certificates, Kate’s profession is listed as ‘Princess of the United Kingdom’.
However it is not a title Kate uses, and she is instead formally known as the Duchess of Cambridge.
Even if Kate were to use the title, she wouldn’t be known as Princess Catherine or Princess Kate.
Kate is not considered a Princess by birth, so she would have to use the title of her husband.
This was also the case for William’s late mother who was known as Princess Diana, but in fact her actual title was Diana, Princess of Wales.
Marlene Koenig, a royal expert for History Extra, told Insider: “Diana was never Princess Diana.
“The British royal family follows the older German style of royal wives, by styling the wife by her husband’s name.
“The press called her Princess Diana as the press still uses Prince Charles even though Charles not been styled as Prince Charles since his mother became Queen.”
Ms Koenig added: “If the Queen had not created William a Duke, Catherine would be styled as HRH Princess William of Wales.”
Therefore if Prince William had not accepted the title of Duke of Cambridge, Kate may have been formally styled as a Princess instead.
However, the likelihood of Prince William rejecting a title from the Queen was very slim, as he is second-in-line to the throne.
Kate and William mocked for AWKWARD Prince Harry birthday picture [PICTURES]
Pippa Middleton admission: Harsh rebuke mother gave Kate’s sister [INSIGHT]
Meghan Markle fans attack Kate’s photography project – ‘ZERO impact’ [ANALYSIS]
Although unusual, some members of the Royal Family have not accepted the Queen’s offer of a royal title on their wedding days.
Famously Captain Mark Phillips did not accept a title when he married Princess Anne in 1973.
In recent years declining royal titles has become more common, as was the case with the Queen’s granddaughter Princess Eugenie and her husband Jack Brooksbank when they married in 2018.
Princess Beatrice’s husband, Edoardo Mapelli Mozzi, also did not receive a new title when he married Beatrice earlier this year.
Although Kate is not technically a Princess in her own right, her daughter Princess Charlotte is.
However before William and Kate’s first child was born in 2013, the Queen passed a special decree to allow their children Prince and Princess titles.
Under the reign of George V, it was decided only the children of the monarch and the monarch’s grandchildren through the male line would automatically receive Prince and Princess titles.
However, the Queen decreed in 2013 the children of the Duke and Duchess of Cambridge would also bear these titles, as they are the children of a future King.