The Archpriest is the head of the Canons of the Cathedral Chapter and has always been of primary importance in the history of the Milanese Church, at least from the 8th century onwards. The Cathedral is first and foremost the see of the Bishop, who has the right and the duty to preside over all the services. St. Ambrose and his priests held services in the cathedral every day and only when he was away from the city did he appoint a priest to celebrate services in his place, i.e. the Archpriest, who was considered to be eminent by virtue of his age and the respect of his brothers. In Milan this practice has always been maintained. Throughout the centuries, the Veneranda Fabbrica del Duomo also established that it was the duty of the Archpriest to provide for all the worship in the Cathedral, collaborating with the Fabbrica to ensure harmony at all times between liturgy and art. For this reason San Carlo [Borromeo] insisted on the Archpriest being a member of the governing body of the Fabbrica. Mons. Gianantonio Borgonovo has been the Archpriest of the Cathedral since December 2012.