Princess Diana (1961 - 1997) wearing a Catherine Walker gown and the Spencer tiara at a banquet in Munich, November 1987. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)
Princess Diana (1961 - 1997) wearing a Catherine Walker gown and the Spencer tiara at a banquet in Munich, November 1987. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)