Diamond Jubilee – Service Of Thanksgiving-----She is not Princess Kate; she is a Duchess. She could only be called Princess Kate if she was born a princess. If Prince William had not been made a Duke, she would be called Princess William.
February Kate Middleton attends at gala at the National Portrait Gala. She's wearing an impressive diamond necklace on loan from the Queen, her own diamond earrings, an ink-blue Jenny Packham gown and black suede Jimmy Choo heels.
LONDON, ENGLAND - OCTOBER Catherine, Duchess of Cambridge carries her son Prince George Of Cambridge after his christening at the Chapel Royal in St James's Palace on October 2013 in London, England. (Photo by John Stillwell - WPA Pool /Getty Images)