Blanca Luz Brum (31 May 1905, Pan de Azúcar, Maldonado - 7 August 1985, Santiago, Chile) was a writer, journalist, poet and artist from Uruguay.

[3] In 1935, divorced from Siqueiros, she lived in northern Chile and married to Jorge Béeche, a mining engineer and radical.

[7] Brum wrote vanguard poetry in the 1920s, contributed fiery articles to Amauta [es] and edited her own journal: Guerrilla: Atalaya de la Revolucion.

[15] From 1943 on, she was related to the union sectors that gave rise to Peronism in Argentina, she served as press officer for the Ministry of Labour and Social Security under Juan Domingo Perón.

[7] She played a leading role as an organiser and agitator in the workers' mobilisation of 17 October 1945, which freed Perón from his arrest ordered by a military coup d'état and opened the way to his electoral victory the following year.

Brum became extremely interested with life on the remote Juan Fernandez Island and was eventually secluded there, due to her role in helping the escape from prison of the Argentine politician Guillermo Patricio Kelly.