Grimbert Joan Tasker Grimbert 
”Yvain” dans le miroir [PDF ebook] 
Une poétique de la reflexion dans le ’Chevalier au lion’ de Chrétien de Troyes

This study views the pervasive ambiguity of Chretien”s romances as a positive quality and focuses on the techniques used in Yvain to encourage reflection. An adversative structure informs this romance, setting up a disconcerting rhythm of false belief and reversal which forces the reader/listener (like the hero) to question all that meets the eyes and ears.
Grimbert”s discussion ranges broadly and authoritatively over subjects from narrative omniscience and reliability … to character, to rhetoric and the duplicity of language”. Norris J. Lacy, French Review 63.2 (1989).