Résumé :
This article investigates te text of the unpublished Life of S. Stephen the Younger and of some other martyrs, transmitted by cod. Athen. 2108 (12th c.) ff. 74-77, and belonging to the first period of Iconoclasm, at the end of the VIII century. The content of the Synaxarion is not a detailed biographical sketch, but aims mainly to stress the saints’ faith in spite of the tortures inflicted on them by the emperor Constantine V Copronymus, because of their attachment to Orthodoxy and their respect for holy icons. Stephen’s resistance tot he Iconoclastic policy of the emperor provoked severe punishment against him and other saints (Hosios Peter, Andrew the Late, the martyr Basil, the anonymous martyr enclosed in Sosthenion, Stephen, Bishop of Sougdaia, Andrew Scholarius, the martyr Gregory Kosmas Lagodontis and John Ligataris). The passions of these saints offer many details about them and their activities which are not known from other hagiographical sources and become known here fort the first time.