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María Rosalía Rita de Castro, known as Rosalía de Castro, was a Spanish poet and novelist. She is considered one of the most important figures of the Galician literary revival, known as the Rexurdimento. De Castro's work often explored themes of love, nature, and Galician identity. She is best known for her poetry collection "Cantares Gallegos" (1863), which celebrates the Galician language and culture.