Poetry in the first years of the 16th century is characterised by the elaborate sonorous and graphic experimentation and skillful word games of a number of Northern poets (such as Jean Lemaire de Belges and Jean Molinet), generally called "les Grands Rhétoriqueurs" who continued to develop poetic techniques from the previous century. Soon however, the impact of Petrarch (the sonnet cycle addressed to an idealised lover, the use of amorous pardoxes), Italian poets in the French court (like Luigi Alamanni), Italian Neo-platonism and humanism, and the rediscovery of certain Greek poets (such as Pindar and Anacreon) would profoundly modify the French tradition.
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In this respect, the French poets Clément Marot and Mellin de Saint-Gelais are transitional figures: they are credited with some of the first sonnets in French, but their poems continue to employ many of the traditional forms.
The new direction of poetry is fully apparent in the work of the humanist Jacques Peletier du Mans. In 1541, he published the first French translation of Horace's "Ars poetica" and in 1547 he published a collection of poems "Œuvres poétiques", which included translations from the first two cantos of Homer's Odyssey and the first book of Virgil's Georgics, twelve Petrarchian sonnets, three Horacian odes and a Martial-like epigram; this poetry collection also included the first published poems of Joachim Du Bellay and Pierre de Ronsard.
Around Ronsard, Du Bellay and Jean Antoine de Baïf there formed a group of radical young noble poets of the court (generally known today as La Pléiade, although use of this term is debated). The character of their literary program was given in Du Bellay's manifesto, the "Defense and Illustration of the French Language" (1549) which maintained that French (like the Tuscan of Petrarch and Dante) was a worthy language for literary expression and which promulgated a program of linguistic and literary production (including the imitation of Latin and Greek genres) and purification. For some of the members of the Pléiade, the act of the poetry itself was seen as a form of divine inspiration (see Pontus de Tyard for example), a possession by the muses akin to romantic passion, prophetic fervor or alcoholic delirium.