Caeremoniale Episcoporum

Pope Clement VIII published on 14 July 1600 the first book to bear this name, a revision, in line with the renewal ordered by the Council of Trent, of the contents of books, called Ordines Romani, written from the end of the seventh century on to describe the ceremonies for the election and ordination of a Pope and to give indications for Mass and other celebrations by the Pope in the course of the year.

A work in two sections that became known as De Cæremoniis Cardinalium et Episcoporum in eorum diœcesibus (Ceremonies of Cardinals and Bishops in Their Own Dioceses) was added in the sixteenth century.

In 1752, Pope Benedict XIV revised slightly the two preexisting books and added a third on ceremonies to be observed by those holding civil office in the Papal States.

In 1886, Pope Leo XIII made yet another revision, in which, though the Papal States had been incorporated into the Kingdom of Italy, he kept the third book.

[2]) The revision aimed at securing an episcopal liturgy that was "simple, and at the same time noble, fully effective pastorally, and capable of serving as an example for all other liturgical celebrations.