[27] See the illustration, page 348.
[28] So called from the lead seal (Latin bulla) attached to papal documents.
[29] Latin legatus, "deputy."
[30] Latin cardinalus, "principal."
[31] See page 311.
[32] See the plate facing page 591.
[33] See page 317.
[34] See page 418.
[35] A name derived from Simon Magus, who offered money to the Apostle Peter for the power to confer the Holy Spirit. See Acts, viii, 18-20.
[36] The so-called Dictatus papae.