In May 1921, while Montagu Porch was away in Africa, Jennie slipped while coming down a friend's staircase wearing new high-heeled shoes, breaking her ankle. Gangrene set in, and her left leg was amputated above the knee on 10 June. She died at her home at 8 Westbourne Street in London on 29 June, following a haemorrhage of an artery in her thigh (resulting from the amputation). She was 67 years old. She was buried in the Churchill family plot at St Martin's Church, Bladon, Oxfordshire, next to her first husband. The invention of the Manhattan cocktail is sometimes erroneously attributed to Jennie Churchill, who supposedly asked a bartender to make a special drink to celebrate the election of Samuel J. Tilden to the New York governorship in 1874. However, though the drink is believed to have been invented by the Manhattan Club (an association of New York Democrats) on that occasion; Jennie could not have been involved, as she was in Europe at the time, about to give birth to her son Winston later that month. Jennie Churchill was portrayed by Anne Bancroft in the film "Young Winston" (1972) and by Lee Remick in the British television series "" (1974). A play "Lady Randy" written by Anne Undeland was staged in 2019 at the WAM Theatre in Lenox, Massachusetts.