 Its purpose was (1) to proclaim generally the various decrees already issued by the bishop; (2) to discuss and ratify measures on which the bishop chose to consult with his clergy; (3) to publish statutes and decrees of the diocesan synod, of the provincial synod, and of the Holy See.On 1 June 1531, Bishop Giangiacomo Gambarana held a diocesan synod with his clergy in the sacristy of the Cathedral.Bishop Carlo Cicala presided over a synod in 1564.