Gregory of Nyssa 's letter on pilgrimages to Jerusalem (now classified as letter 2) was published on several occasions between 1551 and 1607, and led at that time to a heated controversy between Catholics and Protestants. This article traces the history of the editions of the letter and follows the stages of the controversy, centred both on its genuineness and contents. A French translation of the letter is published as an appendix.La lettre de Grégoire de Nysse sur les pèlerinages à Jérusalem (aujourd'hui sa lettre 2), publiée à plusieurs reprises entre 1551 et 1607, fit à cette époque l'objet d'une vive controverse entre catholiques et protestants . L'article fait le point sur l'histoire des éditions de cette lettre et retrace les étapes ...