The precept that men of God should sleep alone, established by the Lateran Councils of 1123 and 1139 after nine hundred years of hemming and hawing, had begun to fray well before the dawn of the sixteenth century. Now it was a thing of shreds and patches. The last pontiff to take it seriously had died in 1471, and even he, during his youthful days as a bishop of Trieste, had slept with a succession of mistresses. A generation later the occupants of Saint Peter’s chair were openly acknowledging their bantlings, endowing their sons with titles and their daughters with dowries.

