 Boscà is most famous for the incorporation of hendecasyllable verses into Spanish.Although he was preceded by Íñigo López de Mendoza (also known as Marqués de Santillana), who wrote 42 sonnets in the Italian style, Boscà was one of the first people to use the present-day structures of the sonnet in Castilian.His originality and open-minded nature made him an innovator, and his use of hendecasyllabic verse gave his poetry a distinctly creative flare that allowed him to emphasize the emotions and significance of each poem.