Princess Sophia Alexandrovna Duleep Singh was a prominent suffragette in the United Kingdom. Her father was Maharaja Sir Duleep Singh, who had been taken from his kingdom of Punjab to the British Raj, and was subsequently exiled to England. Sophia's mother was Bamba Müller, and her godmother was Queen Victoria. She had four sisters, including two halfsisters, and four brothers. She lived in Hampton Court in an apartment in Faraday House given to her by Queen Victoria as a grace and favour.
During the early twentieth century, Singh was one of several Indian women who pioneered the cause of women's rights in Britain. Although she is best remembered for her leading role in the Women's Tax Resistance League, she also participated in other women's suffrage groups, including the Women's Social and Political Union.