Brigadier John Dennis Profumo,
CBE ( ; 30 January 1915 – 9 March 2006), informally known as
Jack Profumo, was a
British politician. The Profumo family is of
Italian origin, and John Profumo held the title of
5th Baron Profumo in the nobility of the
Kingdom of Sardinia. Although Profumo held an increasingly responsible series of political posts in the 1950s, his career ended after he had a sexual relationship with the 19-year-old model
Christine Keeler in 1963. The scandal, which became known as the
Profumo affair, led to his resignation and withdrawal from politics, and it may have helped to topple the
Conservative government of
Harold Macmillan.