In 1663 Capizucchi was sacked from the latter position by Alexander VII, because he had allowed a publication critical of the pope. Afterwards, he secluded himself for the next 10 years in his monastery, writing books on theological issues, until in 1673 he was reinstated in his former position with a papal bull by pope Clement X (r. 1670–76). The same pope appointed him member with voting rights of the Congregations of the Holy Office, of the Rites, of the Indulgences, of the Index and for bishops.
