Much has been written for and against or concerning the use of agudos, or oxytones, and esdrújulos, or proparoxytones, in rime in Italianate verse (seven and eleven syllable lines) by the poets of the Spanish Golden Age. The names of Buceta and Zerolo on the esdrújulo, and Menéndez y Pelayo and Rodríguez Marín on the agudo, are outstanding. Nothing has been done, however, so far as I know, to correlate the use of the two chronologically. A short résumé of the history of opinion and criticism of their use may shed some light on the matter.
