The letters which he wrote to him during these years turn mainly upon business or poetical compositions.

Some, however, throw light upon the private life of both men, and on the nature of their intimacy.

I will select a few for special comment here.

The following has no date; but it is interesting, because we may connect the feeling expressed in it with one of Michelangelo's familiar sonnets.

"Dear Messer Luigi, since I know you are as great a master of ceremonies as I am unfit for that trade, I beg you to help me in a little matter.