In 1924, she lent her fame to her husband's successful campaign for election to
House of Commons and canvassed on his behalf in
Oldham. As Prime Minister Churchill's personal representative, Duff Cooper MP was unsuccessful in effecting a positive strategy, and he was recalled in January 1942, shortly before
Singapore fell in February. In between accompanying her husband on his wartime appointments abroad, Lady Diana converted her three-acre property at
Bognor Regis into a
smallholding to provide her family with extra food in light of shortages and
rationing. Aided by her friend
Conrad Russell, she raised livestock, grew crops, practised
beekeeping, and made her own butter and cheeses. She also volunteered at a
YMCA canteen and worked briefly in a workshop making
camouflage nets for gunners. Between January and August 1944, the couple lived in
Algiers, where Duff Cooper was appointed British Representative to the
Free French Committee of National Liberation. Lady Diana focused her energies as a hostess on making an "
Eden" of the couple's home for British civil servants stationed in Algiers, who were poorly housed in unheated and waterless lodgings and "had no retreats, amenities, sports or welcomes". The Coopers' home provided British personnel an outlet for rest, socializing, good food, and recreation. Her reputation became even more celebrated in France as the centrepoint of immediate post-Second World War French literary culture when Cooper served from 1944 to 1948 as
Britain's ambassador to France. During this period, Lady Diana's popularity as a hostess remained undimmed, even after allegations that the embassy guest list included "
pederasts and
collaborators". The couple were known for maintaining an "open house" every evening, where leading cultural figures and diplomats could come freely to socialize and enjoy good food and plentiful liquour provided by the British government, both luxuries in Paris after years of wartime shortages. Following Duff Cooper's retirement in 1947, the couple continued to live in France at
Chantilly until his death in 1954, following an alcohol-related upper gastrointestinal haemorrhage. The couple's decision to remain in France was controversial because it was contrary to
diplomatic protocol; their continuing popularity as social figures and hosts in Paris effectively made their home a rival British Embassy. Duff Cooper was created
Viscount Norwich in 1952, for services to the nation, but Lady Diana refused to be called Viscountess Norwich, claiming that it sounded like "porridge". Following her husband's death, she made an announcement in
The Times to this effect, stating that she had "reverted to the name and title of Lady Diana Cooper". ==Later years==