David Cornwell was born on 19 October 1931 in Poole, Dorset, England. His father was Ronald Thomas Archibald (Ronnie) Cornwell (1906–75), and his mother was Olive (Glassy) Cornwell. He has an older brother, Tony, two years his elder, now a retired advertising executive. His younger half-sister is the Actress Charlotte Cornwell. His younger half-brother, Rupert Cornwell, is a former Washington bureau chief for the newspaper The Independent. Cornwell said he did not know his mother, who abandoned him when he was five years old, until their re-acquaintance when he was 21 years old. His father had been jailed for insurance fraud, was an associate of the Kray twins, and was continually in debt. Their father/son relationship was difficult. A biographer reports, "His father, Ronnie, made and lost his fortune a number of times due to elaborate confidence tricks and schemes which landed him in prison on at least one occasion. This was one of the factors that led to le Carré's fascination with secrets."