Flaminio Vacca

At the notoriously awkward fountain that marked the terminus of the Acqua Felice, Vacca contributed one of the angels (documented 1588–89,) supporting Sixtus V's coat-of-arms that crown the attic, and a bas-relief Joshua Leading His People across the Jordan River; in these commissions for the fountain his partner in the documented payments was Pietro Paolo Olivieri.

Vacca's copy was replaced by a copy when Villa Medici was sold by the Grand Duke of Tuscany and moved the lions to Piazza della Signoria, Florence, where with its ancient companion it flanks the steps to the Loggia dei Lanzi.

[2] Outside Rome his sculpture may be found at Spello (a tabernacle [1587] in the Capella del Sacramento, Church of San Lorenzo); His Memorie di varie antichità trovate in diversi luoghi della Città di Roma (Rome 1594, republished as a supplement to Famiano Nardini's Roma Antica [1666], reprinted by Carlo Fea, 1790) are a primary source of information and rich human detail on the discoveries of Roman sculpture and antiquities in the later sixteenth century, and also on the destruction of antiquities, especially for the urbanistic programmes of Pope Sixtus V. His pithy numbered anecdotal notes consistently begin Mi ricordo..., "I remember...".

[3] Vacca had been one of the founding members of the Confraternità dei Virtuosi that was formed at the Pantheon by Desiderio da Segni, a canon of the church of Santa Maria ad Martyres that occupied and preserved the Pantheon, to ensure that worship was maintained in the Chapel of St Joseph in the Holy Land, Others among the first members were Antonio da Sangallo the younger, Jacopo Meneghino, Giovanni Mangone, Taddeo Zuccari and Domenico Beccafumi.

A modern account of his career is Sergio Lombardi, "Flaminio Vacca," in Roma di Sisto V: Le arti e la cultura, Maria Luisa Madonna, ed.