A Rondeau is a French form, 15 lines long, consisting of three stanzas: a quintet, a quatrain, and a sestet with a rhyme scheme as follows: aabba aabR aabbaR.
A Kyrielle is a French form of rhyming poetry written in quatrains (a stanza consisting of 4 lines), and each quatrain contains a repeating line or phrase as a refrain (usually appearing as the last line of each stanza).