Starting in the late 16th century, a legend began that the second of these points, the threat that polyphony might have been banned by the Council because of the unintelligibility of the words, was the impetus behind Palestrina's composition of this mass. It was believed that the simple, declamatory style of "Missa Papae Marcelli" convinced Cardinal Carlo Borromeo, on hearing, that polyphony could be intelligible, and that music such as Palestrina's was all too beautiful to ban from the Church. In 1607, the composer Agostino Agazzari wrote: