As a cleric and notary in St Peter's, Giacomo Grimaldi (1568–1623) was an indefatigable scholar of the history of the Basilica and its Chapter, compiling numerous archival and historical works. This article presents the preliminary investigations on Grimaldi's Liber de sacrosancto Veronicae sudario, a compilation of all the information the author was able to trace in the Vatican Libraries and Archives about the Vatican Veronica. The article briefly considers the three Liber's autographs (Biblioteca Vaticana, Biblioteca Nazionale di Firenze, Biblioteca Ambrosiana), the various sources of the work, and Grimaldi's method of quoting.
Giacomo Grimaldi; Vatican Library; Vatican Archives; Vatican Chapter; Ambrosiana Library; St Peter's Basilica; Veronica; Tiberio Alfarano; medieval history; sixteenth–seventeenth century scholarship