Every word written by Michelangelo upon the subject shows that he was heart-broken at having to abandon the long-cherished project.
Some sort of arrangement must have been arrived at.

Clement took the matter into his own hands, and during the summer of 1525 amicable negotiations were in progress.

On the 4th of September Michelangelo writes again to Fattucci, saying that he is quite willing to complete the tomb upon the same plan as that of the Pope Pius (now in the Church of S.Andrea della Valle)--that is, to adopt a mural system instead of the vast detached monument.

This would take less time.

He again urges his friend not to stay at Rome for the sake of these affairs.