Her first Tube journey was in May 1939 as a 13-year-old princess, accompanied by her sister Princess Margaret and governess, Marion Crawford.

BBC: Queen and Catherine visit Baker Street Tube station

Doctors said the 36-year-old princess died about four hours after the crash that also killed her companion, Dodi Fayed, and their chauffeur.

CNN: World banner

The 42-year-old princess of pop will also wear a dress designed by Stella McCartney when she weds British film director Guy Ritchie on December 22, the website said.

CNN: Madonna to wed in Princess Grace's tiara