Note on ordinal numbering: Popes Benedict XI–XVI are really the 10th–15th popes with that name. This is because Benedict X is now parsed as an antipope; but during the reign of Benedict XI, this was not recognized. The "true" or actual thirteenth pope Benedict identified himself with the ordinal number XIV. In other words, the numbering of popes after the 10th Benedict needs to be explained -- compare Popes Boniface VIII–IX.
