Norwich presents such popes as Innocent I, who in the fifth century successfully negotiated with Alaric the Goth, an invader civil authorities could not defeat; Leo I, who two decades later tamed (and perhaps paid off) Attila the Hun; the infamous “pornocracy”—the five libertines who were descendants or lovers of Marozia, debauched daughter of one of Rome’s most powerful families; Pope Paul III, “the greatest pontiff of the sixteenth century,” who reinterpreted the Church’s teaching and discipline; John XXIII, who in five short years starting in 1958 instituted reforms that led to Vatican II; and Benedict XVI, who is coping with today’s global priest sex scandal.