The garb of Cardinals is scarlet, with a biretta or cap of the same color. Chief among their insignia is the “red hat,” which also forms a prominent feature of their armorial bearings. A Cardinal is usually addressed as “Your Eminence.” Cardinal’s Hat . The principal duty of the Cardinals is to assist and advise the Pope in the governing of the Church. This is done in many ways—in “Papal Consistories” (in which details of Church administration are discussed and settled, such