Volume XVI of the Renaissance News (pp. 11-14) contained a brief description of the Gondi-Medici business records in the University of Pennsylvania Libraries, since then listed as Lea Mss. 212-355 in the University's Catalogue of Manuscripts… (Philadelphia, 1965). In the meantime another larger and more important collection has been acquired. This second archive has the same provenience as the first. The many members of the Medici family appearing in these pages belong largely to the branch of Salvestro (Litta, Tavola VI), while in the case of the Gondi we know for certain only that the ultimate owners of the 'archive’ were Caterina and Elisabetta Gondi, who left it to the Ritiro della Quiete in Florence.