The figure of Saint Gallus, ostensibly the eponymous founder of Saint-Gallen, was the subject of much hagiographical treatment in the late Merovingian and early Carolingian periods. No fewer than four hagiographical texts were produced by individuals ensconced in communities that commemorated him. This process, called recently réécriture, permitted authors in iteration to employ the same basic narrative to a variety of ends. The anonymous Vita vetustissima (before 771), Wetti’s Vita Galli (before 824), Wahalfrid’s Vita Galli (833/34), and the anonymous Vita metrica Galli (between 833/34 and 837) each preserved accounts of Gallus’ career and posthumous events attributed to his intercession. Reading in parallel four episodes shared between these four texts allows us to see the various ways authors chose to frame their subject and allows us to imagine the authorial ambition of their composers. This chain of custody for the Gallus materials responded to concerns about institutional integrity, facilities, and ecclesiology by occasioning new compositions at key moments, such as moments of investment, license, and donation. It also reveals the generic conventions used by its authors to achieve their authorial ambition. The Vita vetustissima treats Gallus as a conventional late antique holy man; Wetti’s text was intended for lectionary purposes; Walahfrid’s text was encyclopedic in nature; and the Vita metrica, an ‘institutional Aeneid,’ advances Gallus as a holy hero suited to secular letters. Principally, Abbot Gozbert (r. 816–37) stewarded this process as an exercise in community-building.