Mercedes Rein, born in Montevideo, Uruguay, on July 22, 1930, was a prominent playwright, poet, novelist, essayist, literary critic, and teacher. She studied Law and Philosophy, and was a disciple of figures such as Alberto Zum Felde and Emilio Oribe. As a playwright, she co-founded the Teatro Circular de Montevideo in 1954 and was a member of the Generation of '45. Her plays, such as "El herrero y la muerte" (written with Jorge Curi), "La balada de J.J." or "Unas y otras," addressed social and political themes, consolidating her as one of the most important voices in Uruguayan theater. Her play "Una noche de espías" (1973) is a benchmark of political theater. In addition to her theatrical production, she published poetry collections ("La casa vacía", "El libro de los hermanos"), novels ("La vejez de Iris"), and critical essays on literature and theater. She was also a literature professor at various institutions and an influential literary critic in the media. She received multiple accolades throughout her career, including the Uruguayan National Literature Prize on several occasions. Her work has been translated into several languages and performed internationally. Mercedes Rein passed away in Montevideo on January 22, 2006, leaving a significant legacy in Latin American literature and theater.