Youthful: A young Lady Diana Spencer taken before her marriage to Prince Charles

Previously unseen photo of teenage Princess Diana scrawled with 'not to be published' goes under the hammer

Princess Diana...April Princess Diana watches a display of Tornado jet fighters at an air base outside Milan, Italy during the Royal Tour of Italy.

Daily Mail: The newly engaged Lady Diana Spencer and Princess Grace at Goldsmiths' Hall in 1981

CRAIG BROWN: The day a young Diana fretted about her dress before Princess Grace told her, 'Don't worry, it'll only get worse'