 Her cousin Carl Klingenberg (d. 1757) was until his death important as a representative of rational science, and his death caused her a severe depression.In close cooperation with the other academy members of "Tankebyggarorden", Gustaf Philip Creutz and Gustaf Fredric Gylleborg, she published two volumes of "Witterhets arbeten" (1759–62), which has been referred to as the breakthrough of the literary classicism in Sweden.During the 1750s, her style became more in the line of classicism, during which she became known and appreciated in Germany, and was awarded by Empress Elizabeth of Russia for her poem to the Russian heir to the throne.