Ser Giovanni di Domenico "de verti" (of the glass windows) was a priest and glass craftsman. In February 1503 he could claim payment for five windows in the church and convent of Cestello (Santa Maria Maddalena de'Pazzi) in Florence. No more is known of him at present. [This is an edited version of the artist's biography published, or to be published, in the NGA Systematic Catalogue]
Distelberger, Rudolf, Alison Luchs, Philippe Verdier, and Timonthy H. Wilson. Western Decorative Arts, Part I: Medieval, Renaissance, and Historicizing Styles including Metalwork, Enamels, and Ceramics. The Collections of the National Gallery of Art Systematic Catalogue. Washington, D.C., 1993: 62.