The building's he lest unfiniilied in Mantua were
carried on by Bertani, who erefted the Church and
Campanile of Santa Barbara, called the Quattrizonio^
the best in Italy.
Sebastian Serlio,11 of whom Vasari, our general
guide in this walk os Biography, says little or no-
thing, was born in the Bolognese •, and distinguished
himself as an Architect, in Lombardy, about 1530.
His mailer in Geometry, Perspeftive, Painting and
Architecture, was Baldassare Peruzzi os Sienna, who
formed many other great artists. Serlio was one of
the moil attentive observers os the remains of the
antient Roman edifices, and the firsb that gave their
measurement, in detail, with reasonable accuracy.3
He is by the Marquis Maffei 7 highly commended
for his particular treatment of the amphitheatres j
having in his book given designs of those of Rome,
Verona, Pola, with elevations, sedions, plans and
profiles. He residecl sometime in Venice, where
he published his fourth book, the firsb that appear-
ed! 'Phis procured him the favour, largelTes, and
invitation of Francis the firsb to his service. The
honour thereby done him lie did not immediately
accept ^ since it appears srom the dedication of his
fourth book to the Marquis del Vasto, upon his re-
publication os it at Venice, with additions, in 1540P
wherein he says here in Venice, that he was there in
the month os February that year. It is probable
a Sebastian Serlio died 1552.
x See in his third book a valuable colle&ion of them,
y Book 2. C-. 1, of his Treatise on amphitheatres.
2 Pressb Francesco Mareolini da Forli,