Sara Solá de Castellanos (pen name: Violeta del Valle; 23 June 1890 – after 1928) was an Argentine poet, novelist, playwright and lyricist.
Sola de Castellanos began publishing poetic compositions from a very young age in local newspapers and magazines, such as Caras y Caretas, signing with the pseudonym "Violeta del Valle".
In 1923, she edited Elogio de la Vida Provinciana,[4] which included her dramatic poem.
She also composed theatrical works, among the most outstanding are: En los Tiempos Gloriosos, which premiered at the Victoria Theater in Salta in 1928 and Florilegio del Milagro y Santoral.
She also composed novels, such as La Esposa del Oidor, for which she received distinctions at the Floral Games and by the Consejo Nacional de Mujeres del Argentina (National Council of Women of Argentina).