When Mariane Nielsdatter was born on 31 December 1780, in Hillerslev, Sallinge, Svendborg, Denmark, her father, Niels Christensen, was 25 and her mother, Ane Marie Rasmusdatter, was 28. She married Jorgen Larsen on 17 April 1807, in Hillerslev, Sallinge, Svendborg, Denmark. They were the parents of at least 3 sons and 3 daughters. She died on 19 November 1863, in Gestelev, Sallinge, Svendborg, Denmark, at the age of 82, and was buried in Gestelev, Sallinge, Svendborg, Denmark.