Sigmund Freud (6 May 1856 – 23 September 1939) was an Austrian neurologist and the founder of psychoanalysis, a clinical method for treating psychopathology through dialogue between a patient and a psychoanalyst.

Martha Bernays (26 July 1861 – 2 November 1951) was his wife. Bernays was the second daughter of Emmeline and Berman Bernays. Her paternal grandfather Isaac Bernays was a Chief Rabbi of Hamburg.

Sigmund and Martha met in April 1882 and after a four-year engagement (1882–1886) they were married on 14 September 1886 in Hamburg.

Freud and Bernays’s love letters sent during the engagement years, according to Freud's official biographer Ernest Jones, who read all the letters, "would be a not unworthy contribution to the great love literature of the world." Freud sent over 900 (lengthy) letters to his fiancée, which chart the ups and downs of a tempestuous relationship, marred by outbreaks of jealousy on his part as well as affirmations that "I love you with a kind of passionate enchantment".

Their eventual marriage was a much more harmonious affair - Martha consoling herself after his death with the thought that "in the 53 years of our marriage there was not a single angry word between us".

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