of Vico Pisano was after his model; as was the old
citadel at Pisa. At the new citadel he suggested the
idea of shutting up the bridge by the two towers.
The fortress of the port of Pesaro was after his plan.
In 1445 (1'ays Vasari) he was sent by the republic to
the assistance of the Marquis of Mantua, for whom
he dirested the imbankment of a tradt of the Po
and other works.
An admirable crucisix in wood of his execution,
in the cappella de Gondi in Santa Maria novella at
Florence, attests his excellence in sculpture.
Scamozzi, who was in possession of their MSS.
affirms that Antonio Filarete, a Florentine, and
Francesco Sanese (of the family os Martini of Sienna)
were of the earliest writers on Architecture, Both
were good practitioners sor their time; but the book,
which the former in 1464 dedicated to Pietro de5
Medici, does him little credit as an author. There-
sore we may truly say, that the first considerable
writer on the subject was
Leon Battista Alberti1 canon os the Metro-
politan church of Florence. His father was Lo-
renzo Alberti, of a family noble and powerful at
Florence. His paternal uncle, for his virtues and
talents displayed in the council of Florence, was
created a cardinal by Pope Eugene IV. His brothers,
who had the same excellent education with himsels,
were all men of ability. Our Alberti, joining the
most assiduous application to the large st opportunities
of instrudtion his father could procurb sor him, be-
t Leon Battista Alberti born 139?. .his death uncertain.