Cecelia "Sissy" Pollard was the daughter of Lord Richard and Lady Louisa Pollard and the younger sister of Charlotte and Margaret Pollard.
Biography
When she was 13, her father took her on a fox hunt, and she enjoyed the blood and gore. Charley said that this changed her. (AUDIO: The Next Life) Cecelia was a member of the League of English Fascists and had met Adolf Hitler. (AUDIO: A Blind Eye)
Her parents cut contact with her because of her pro-fascist views. By November 1936, they had not spoken for years. (AUDIO: The Fall of the House of Pollard)
Charley regarded Sissy's badminton group as the most ghastly people whom she had ever met. (AUDIO: The Viyran Solution)
Torvald, an agent of the Celestial Intervention Agency, tried to threaten Romana's position as the Lady President of Gallifrey. First, he brought the anti-time crisis to light. Next, he changed history slightly. He lured Sissy to Switzerland with a fake telegram from her long-missing sister, Charley. Without that interference, Sissy would have committed suicide in Munich to protest the beginning of World War II.
On 1 September 1939, a meeting with Leela made her realise that her blind eye to the Nazis' crimes made her just as liable as them. Sissy shot herself in this new timeline after writing a farewell letter to Charley. (AUDIO: A Blind Eye)