This paper examines the genesis, consistency and dispersion of the epigraphic collection of the Venetian abbot Onorio Arrigoni (1668?-1758). This group of inscriptions, formerly housed in the abbot’s home in Fondamenta de la Sensa in the Cannaregio district, has never been the object of any specific study, although it included over thirty inscribed monuments, most of which came from the antiquarian market in Rome.