The intrigues of the conclave, at the choosing of a pope as also a particular relation of what past at the election of Sixtus V, and Clement VIII : to which is added an historical essay, to demonstrate that according to the principles of the Church of Rome, there has not been, nor can be, any true and lawful pope since the election of Sixtus V / written by a gentleman of Rome.

Abstract

Reproduction of original in Huntington Library.