All of them were martyrs venerated in July according to various Christian calendars, including the Martyrologium Hieronymianum, the Synaxarium of Constantinople, and the Copto-Arabic Synaxarium. The legible names include: Athenogenes (of Pedachthoe), Euphemia (of Chalcedon), Tryphon, and Menelaus. It preserves fragments of a liturgical calendar in Greek, giving names of saints and days of a month. The scrap, inscribed on both sides, probably originates from a codex, which can be dated to the 10th/11th century on palaeographic grounds. This article offers the edition of a parchment scrap found in the 1960s in Gebel Adda (Egyptian Nubia) and now kept in the Royal Ontario Museum, Toronto.
