Theresa Berkley, a 19th-century English dominatrix, died in London in September 1836. Her death led to the discovery of the nature of her work by her brother, a missionary in Australia, and the subsequent escheating of her £100,000 estate to the crown after he and her executor, Dr. Vance, refused to claim it.

Based on the text, Theresa Berkley, a 19th-century English dominatrix who ran a brothel in Hallam Street, was active. While the text mentions she died in September 1836, assuming that she was active at the beginning of the year, one can assume that she was running her brothel in early 1836.