Lady Diana came from 2 aristocratic families : Spencer (from her father) and Frances ( from her mother) .
In 29 July 1981 she married Charles, Prince of Wales. They got married at St. Paul's Cathedral, and that's how Diana,became Her Royal Highness, The Princess of Wales.
Because the Queen issued leters patent on 21 August 1996 that automatically took the title Royal Highness away from wives who divorce member of the Royal Family like Diana, Princess of Wales and Sarah, Duchess of York
Because Prince Charles was - and still is - the Prince of Wales when she married him. Her name was never Princess Diana. He correct title was Diana, Princess of Wales.
lady is not a noble title so no, sadly Princess Diana of whales was not of noble blood. she married into nobility thus holding the title of Diana princess of whales.
"Princess" Diana
The title was one she gave to herself. This was then promulgated by the popular press.
She did not rule over anywhere. She was due to become Queen Consort, when her husband would have 'reigned' (rather than ruled) - that is to say, he would be there to advise, encourage and warn his elected government.
No Diana is not a princess
No she was not the first Princess of Wales. The title Prince of Wales was established in 1307 by Edward I. There have been 10 Princesses of Wales since it was established and Diana was the 9th.
Princess Diana's full name was Diana Frances Spencer. At the time of her death, she was referred to as Diana, Princess of Wales; she in fact was not given the title "Princess" alone. Diana is often referred to as Lady Diana Spencer rather than Diana, Princess of Wales, due to the tradition of referring to deceased women by their maiden name and title.
Lady Diana Spencer
Diana became HRH Princess of Wales when she married Prince Charles on July 29th, 1981. After the divorce in 1996 she had to give up the HRH (Her Royal Highness) and became Diana, Princess of Wales. She was never officially called Princess Diana.
Princess Diana's funeral was at Westminster Abbey.
If you mean was Princess Diana short for something? then yes it was short for Diana, Princess of Wales. If you mean is there a shorter name for Princess Diana? then some people called her Princess Di.