The Chapel of the Catholic Kings was conceived as a burial site intimately linked to the Cathedral, but without merging with its architecture. It is built with a single nave, an octagonal presbytery preceded by bleachers, a transept with little development and a choir at its feet, for the functions of a pantheon. As a funeral chapel none, in Spain, it excels in size. In it you can appreciate both its simplicity and its wealth thanks to the generous endowment of the queen. The Royal Chapel houses the mortal remains of Don Fernando de Aragón and Dona Isabel de Castilla (who were initially resting in the convent of San Francisco de la Alhambra), as well as those of Dona Juana I, Don Felipe and Infante Miguel. Under the tombs there is a small crypt of marked austerity, in which are deposited the real, lead coffins, identified by the initial of each name on the cover.