When Katrine Sofie Wilhelmine Mollmann was born on 22 May 1831, in Bøstrup, Svendborg, Denmark, her father, Johannes Matheus Peter Casper Carolus Mollmann, was 41 and her mother, Anne Margarethe Hanna Margrete Pedersen, was 37. She died on 26 February 1833, in her hometown, at the age of 1.