Castro Alves

Antônio Frederico de Castro Alves was a Brazilian poet and playwright famous for his abolitionist and republican poems. One of the most famous poets of the Condorist movement, he wrote classics such as Espumas Flutuantes and Hinos do Equador, which elevated him to the position of greatest among his contemporaries, as well as verses from poems such as "Os Escravos" and "A Cachoeira de Paulo Afonso"... (Wikipedia)