Quintilla (poetry)
A quintilla is a Spanish stanza of five octosyllabic lines. It employs two rhymes and no three consecutive lines may rhyme nor may it end in a couplet. The most common scheme is "abaab", but "abbab", "aabab", "ababa" and "aabba" are also permitted. It is similar to the four-line "redondilla" but is distinct from the "quintilla real", which contains five hendecasyllabic lines. Popular in the 15th century, as a standalone poem the "quintilla" only evolved in the 16th century from the separation of the parts of the nine- or ten-line "copla de arte menor". It originally  considered a type of "redondilla". The forms that begin with a couplet ("aabba" and "aabab") were not popular on their own but do appear as the second half of the "copla real". The famous poem "Fiesta de toros en Madrid" by Nicolás Fernández de Moratín uses four of the possible forms. Example. "Cancionero general", no. 481: <poem> </poem>