Giovanni Grosso of the Swiss Guards Standing before a View of Rome

The medium is watercolor over black ink on laid paper, applied with relatively flat color washes in blue, pink, yellow, and gray atop precise ink outlines. Shading is achieved through fine linear hatching and cross-hatching, while shadows are indicated by gray washes and parallel lines without a strong directional light source. Technical examination has revealed that the ink lines were traced from a 1613 engraving after a design by Francesco Villamena, with graphite and black ink lines present as part of the transfer process. The watercolor application includes color notes and staining that suggest the drawing served a practical, possibly commercial purpose rather than functioning as a finished autonomous work. The paper shows age-related discoloration and a visible hole in the upper right area. The overall handling is characteristic of reproductive workshop practice in early seventeenth-century Rome, where prints were routinely copied and adapted for diverse markets.

The drawing derives from a 1613 engraving by Francesco Vill03 Villamena, which carried a dedication to Grosso and the publisher Andrea Vachario. A handwritten inscription in black ink on the verso of the National Gallery drawing repeats this dedication verbatim, though the drawing is mounted to thick laid paper that partially obscures the hand. The sheet bears the collector's mark of the Kupferstichkabinett Stuttgart (Lugt 2323) before passing to Arturo and Corinne Cuéllar in Zurich, who gifted it to the National Gallery of Art in 2001. The work has been the subject of intensive technical study at the National Gallery, with findings published in the 2024 issue of Facture, the museum's biennial conservation journal, in an essay exploring material evidence and the network of makers.

The drawing emerges from a vibrant early seventeenth-century Roman milieu in which images of antiquarians and ciceroni circulated as part of a burgeoning tourist economy. Francesco Villamena, a member of the Accademia di San Luca, played a central role in producing and disseminating printed portraits of such figures. The National Gallery sheet exemplifies how a single engraved design could be traced, copied, and colored for varied purposes, blurring boundaries between original, reproduction, and commercial promotion. Scholarly confusion has long attended Grosso's identity: variant spellings proliferate in catalog records, and the 1623 Villamena engraving of Cassiano dal Pozzo has sometimes been mistakenly conflated with Grosso when dedicatory inscriptions were trimmed. Some scholars have even posited two separate ciceroni from Lucerne, one named Alto and one named Grosso, both in the Swiss Guard and both dying in 1660. The drawing thus serves as a case study in the challenges of identity, attribution, and the mobility of images in the print market.

The drawing's significance lies less in conventional artistic achievement than in its documentary value for understanding the material practices and social networks of early modern image production. As research by the National Gallery of Art has demonstrated, the sheet illuminates how portraits of figures like Grosso were recycled and adapted to serve the expanding market for antiquities tourism. Grosso himself published a guidebook in 1641, Splendore dell'antica e moderna Roma, under the name Giovanni Ridolfo Alto, consolidating his authority as an interpreter of the city. The drawing, alongside the related prints and the Vatican guest books, contributes to a composite portrait of Grosso as a self-fashioned brand, a guard-turned-guide whose visual image was as carefully managed as his social network. For art historians, the work remains a touchstone for discussions of copying, tracing, and the secondary markets that sustained Baroque visual culture.