This picture is issued in connection with Lady Diana Spencer's 20th birthday, of tomorrow, Wednesday 1 July 1981. Lady Diana and brother Charles, 1967. Lady Diana who weds the Prince of Wales on 29 July, celebrates her 20th birthday on 1 July. This picture shows Lady Diana at Park House, Sandringham, Norfolk in the summer of 1967 with her brother, Charles Edward Maurice, Viscount Althorpe, a former Page of Honour to the Queen, who celebrated his 17th birthday on 21 May
Broadcast Date: 30 June 1981
Agency: Press Association