Also written 黛安娜王妃, and Chinese media often shorten it to 戴妃. 王妃 is the word for the wife of a prince: Catherine, wife of Prince William, is called 凯特王妃.
history
She married Prince Charles in 1981 and they divorced in 1996; her sons are Prince William and Prince Harry. Her work for AIDS patients and against landmines made her known as 'the People's Princess'.