Rosa Ludmilla Assing (22 February 1821 in Hamburg – 25 March 1880 in Florence) was a German writer, who also wrote under the pseudonyms Achim Lothar and Talora.

[1] Ludmilla's parents were liberal intellectuals and held cultural salons attended by authors and thinkers including Heinrich Heine, Friedrich Hebbel, Karl Gutzkow and poets of the Young Germany (Junges Deutschland) movement.

After the death of her parents she moved to Berlin to live with her uncle, author Karl August Varnhagen von Ense, Ludmilla's mother's younger brother.

Ludmilla Assing's friends included Ferdinand Lassalle, Georg and Emma Herwegh, Hedwig Dohm and Hermann, Fürst von Pückler-Muskau.

She married 25 year old Italian Bersaglieri lieutenant Cino Grimelli in 1874[2] leading her to be credited as Ludmilla Assing-Grimelli in later published works.