A ballade stanza is a poetic form consisting of three eight-line stanzas and an envoi, which is a four-line stanza. The envoi is usually addressed to a prince or other person of high rank. The first three stanzas have the same rhyme scheme, while the envoi has a different rhyme scheme. The term 'ballade stanza' is derived from the French word for 'BALLAD, ' which is a type of narrative poem. The solutions to the crossword puzzle are ENVOI (5 letters), ENVOIS (6 letters), STANZAS (7 letters), and STROPHE (7 letters).