Catharina Charlotta Swedenmarck

Catharina Charlotta Swedenmarck (29 January 1744, Stockholm - 1813 Sundsbergs gård, Kyrkslätt), was a Swedish-Finnish writer and poet. Her play Dianas fest (The Feast of Diana) from 1775 is referred to as the first original work of its kind produced by a female during the Gustavian age.

The parentage of Catharina Charlotta Swedenmarck is unknown but her father is believed to have been a clerk. She married first to lieutenant Carl Johan Hastfer (d. 1771). As a widow she met with economical difficulties but was given assistance by the patronage of the courtier Baron Axel Gabriel Leijonhufvud. In 1773, she married major Carl Fredrik Toll, who was the owner of three mansions in Nyland in Finland.