Duque de Rivas is a title associated with the Spanish nobleman and poet, Ángel de Saavedra, who was born in 1791 and died in 1865. He is best known for his contributions to Spanish literature, particularly during the Romantic period. His most famous work is the play "Don Álvaro o la fuerza del sino," which explores themes of fate and passion. In addition to his literary achievements, Duque de Rivas served in various political roles, including as a diplomat and a member of the Spanish parliament. His influence extended beyond literature, as he played a significant part in the cultural and political landscape of 19th-century Spain.