This chapter examines the definitions of the term aventure. It considers this term to be an essential technical term of the medieval poetic vocabulary. It has been recognized as such by modern scholars, who stress the poetological meaning the term acquires in Hartmann von Aue, as well as the performative character the poetic text acquires to the extent that the act of telling and the content of the tale tend to converge. In chivalric poems, Aventure seems to have as many meanings as Tyche. Like Tyche, it designates both chance and destiny: the unexpected event that challenges the knight and a series of facts that will necessarily take place.
Keywords: aventure, chivalric poems, Tyche, medieval poetry, adventure, poetry