Antero Tarquínio de Quental was a Portuguese poet, philosopher, and writer. De Quental is regarded as one of the greatest poets of his generation and is recognized as one of the most influential Portuguese language artists of all time. His name is often mentioned alongside Luís Vaz de Camões, Manuel Maria Barbosa du Bocage, and Fernando Pessoa.

Fernando António Nogueira Pessoa was a Portuguese poet, writer, literary critic, translator, publisher, and philosopher, described as one of the most significant literary figures of the 20th century and one of the greatest poets in the Portuguese language. He also wrote in and translated from English and French.