Frances Lloyd George, Countess Lloyd-George of Dwyfor, CBE (7 October 1888 – 5 December 1972) was the mistress, personal secretary, confidante and second wife of British Prime Minister David Lloyd George.
Frances Louise Stevenson was born in London. She was the daughter of a Lowland Scottish father and a mother of mixed French and Italian extraction. She was educated at Clapham High School, where in the fifth form she had made friends with Mair, Lloyd George's oldest daughter, and Royal Holloway College, where she graduated with a Classics degree in 1910.
In July 1911 Lloyd George, then Chancellor of the Exchequer, hired Stevenson as a governess for his youngest daughter Megan. Lloyd George and Stevenson were soon attracted to each other. Although Stevenson, who wanted a conventional marriage and many children, hesitated about becoming the mistress of a married man, she agreed to become Lloyd George's personal secretary on his terms, which included a sexual relationship, in 1913.
She was created a Commander of the Order of the British Empire in the 1918 New Year Honours and accompanied Lloyd George to the Paris Peace Conference of 1919. The delegates were under the impression she was still just his secretary. Stevenson chose the location and supervised the construction of Lloyd George's country house in Churt, Surrey.
She also arranged and collated Lloyd George's extensive archive of personal and political papers so that he could write his War Memoirs. After having been persuaded by Lloyd George to have two abortions, Stevenson gave birth to a daughter, Jennifer, in 1929.Although Stevenson had been having an affair with Thomas Frederic Tweed, a novelist who was one of Lloyd George's political advisers, Lloyd George was probably the father of Stevenson's child.