 Cardinal Gabriele Paleotti (1566–1597) held a diocesan synod on 16 October 1566, another in 1580,and another in 1594.Cardinal Alessandro Ludovisi (1612–1621) held a diocesan synod on 11 June 1620.Cardinal Ludovico Ludovisi (1621–1632) held a Congregationn of the diocese's archpriests on 9 March 1623, and then a diocesan synod on 8 June 1623.