She grew up in Aix-les Bains, London and Sussex and was educated at Cheltenham Ladies College.
[3] Anne Fremantle stood as a Labour candidate in the 1935 general election, challenging Alfred Duff Cooper's safe Conservative seat of Westminster St George's, and managed not to lose her deposit.
For the safety of her children, she moved to the United States, working in the British Embassy in Washington.
The couple lived in New York, but increasingly spent time each year in Paris and Mexico, where Christopher Fremantle lectured to other followers of Gurdjieff.
After her husband's death, Anne Fremantle returned to live in London, and died there on 26 December 2002.