ms of the Bishop, which are six square
stones "or," on a field "azure," in the same ordering as are the six
balls in the arms of the Medici; which arms of the house of the Bishop
were described by Frate Guittone, chevalier and poet of Arezzo, when he
said, writing of the site of the Castle of Pietramala, whence that
family had its origin:

Dove si scontra il Giglion con la Chiassa
Ivi furono i miei antecessori,
Che in campo azurro d'or portan sei sassa.

Agnolo and Agostino of Siena, then, executed this work with better art
and invention and with more diligence than there had been shown in any
work executed in their times. And in truth they deserve nothing but
infinite praise, having made therein so many figures and so great a
variety of sites, places, towers, horses, men, and other things, that it
is indeed a marvel. And although this tomb was in great part destroyed
by the Frenchmen of the Duke of Anjou, who sacked the greater part of
that city in order to take revenge on the hostile party for certain
affronts received, none the less it shows that it was wrought with very
good judgment by the said Agostino and Agnolo, who cut on it, in rather
large letters, these words:

HOC OPUS FECIT MAGISTER AUGUSTINUS ET MAGISTER ANGELUS DE SENIS.

After this, in the year 1329, they wrought an altar-panel of marble for
the Church of S. Francesco at Bologna, in a passing good manner; and
therein, besides the carved ornamentation, which is very rich, they made
a Christ who is crowning Our Lady, and on each side three similar
figures--S. Francis, S. James, S. Dominic, S. Anthony of Padua, S.
Petronius, and S. John the Evangelist, with figures one braccio and a
half in height. Below each of the said figures is carved a scene in
low-relief from the life of the Saint that is above; and in all these
scenes is an infinite number of half-length figures, which make a rich
and beautiful adornment, according to the custom of those times. It is
seen clearly that Agostino and Agnolo endured very great fatigue in this
work, and that they put into it all diligence and study in order to make
it, as it truly was, a work worthy of praise; and although they are half
eaten away, yet there are to be read thereon their names and the date,
by means of which, it being known when they began it, it is seen that
they laboured eight whole years in completing it. It is true, indeed,
that in that same time they wrought many other small w