The third and closing sessions of the Council of Trent were held in 1562-63, at which the use of polyphonic music in the Catholic Church was discussed.
Jesuit musicians of the 17th century maintained this rumor, and it made its way into music history books into the 19th century, when historian Giuseppe Baini, in his 1828 biography of Palestrina, couched him as the "savior of polyphony" from a council wishing to wipe it out entirely: .