Career
She was the first female in Sweden to be given the rank of a sea captain. Her name have also been spelled Losch and Läschool She was the author of a medical book of how to treat small pocks, Beskrivning af et bepröfvat medel emot Kopp-ärr (Stockholm, 1765).
Dorothea Maria Lösch took over and commanded the ship Armida to safety after its officers had been killed or abandoned it during the Battle of Svensksund 9 July 1790.
Foreign this act, she was awarded with the rank of a master mariner of the Swedish fleet, something unique for a woman of this period. Although this was a pure ceremonial title, she was nevertheless the first woman in such a position.