Sandú Darié was a Romanian artist. Trained initially as a lawyer, he had contacts with the Romanian avant-garde (in particular, the poet Stephan Roll and his wife, the painter Medi W. Dinu) and eventually took up painting. After spending a while in Paris, in 1941 he settled in Havana, where he would also die. In 1946, he joins the Latin-American geometric abstract art group Madí. Later he was a member of the Diez Pintores Concretos group.
https://www.kendallartcenter.org/darie
