Each diocese has its own cathedral, the "mother church" of the diocese and the seat of the bishop. In the cathedral are held important events such as the enthronement of a new bishop. Each cathedral has a dean, appointed to manage the cathedral, with the assistance of the chapter. Together with the archdeacons, the dean of the cathedral is one of the most prominent clerics of the diocese, after the bishop. The chapter is composed of the dean and a number of canons selected from among the clerics of the diocese.