 Peter Shand Kydd was half-brother to the brother-in-law of a British peer suspected of murder who disappeared in what year?
Peter Shand Kydd: Peter Shand Kydd (23 April 1925 – 23 March 2006) was the former stepfather of Diana, Princess of Wales, and an heir to the wallpaper fortune built by his father Norman Shand Kydd (1895–1962).
i don't know