(b Bologna or Volterra, 1512–15; d ?Rome, c. 1565). Italian medallist and sculptor. Son of the sculptor Zaccaria Zacchi (1473–1544) of Volterra, he spent almost his entire career in Bologna, working primarily for the Farnese family. One of his earliest and best-known medals (e.g. Florence, Bargello; see Pollard, p. 1292) was modelled in 1536 and shows the 82-year-old Venetian Doge Andrea Gritti. It is signed IO. ZACCHUS. F. on the reverse, which has a figure of Fortune holding a cornucopia and a tiller and standing on a globe encircled by a three-headed serpent. On only one other medal, that of Fantino Cornaro of Episcopia (Turin, Mus. Civ. A. Ant.), does Zacchi give this full signature. Other medals, signed either IO. F. or simply IO, are attributed to the artist on stylistic grounds, but such attributions make sense both chronologically and geographically. One of these, signed IO. F. (e.g. Florence, Bargello; see Pollard, p. 1293), is of Guido Ascanio Sforza (1518–64) and must also be from c. 1536, since Sforza was made Cardinal of Santafiora in 1534 and was Legate of Bologna from 1536 to 1540. Two additional medals bear the same form of signature, those of Onofrio Bartolini de’ Medici (e.g. London, BM) and Giambattista Malvezzi of Bologna. The third type of signature, IO, is found on only one medal, that of Girolamo Veralli (e.g. London, BM), but it is close in style to the other medals already mentioned and can be ascribed to Zacchi. Two additional unsigned pieces, showing Cardinal Giovanni Maria del Monte Sansovino (later Pope Julius III) and Fabio Mignanelli (1496–1557; Florence, Bargello; see Pollard, pp. 1292–5), Bishop of Lucera from 1540 and Vice-Legate of Bologna from 1541, can also be included in Zacchi’s oeuvre on stylistic grounds.