Cum Sanctissima and Quo Magis: A Canonical Commentary
by the Rev. Fr. Albert P. Marcello, III, J.C.D. (Cand.)
On 22 February 2020, two decrees, each issued along with a nota praevia, were issued by the Congregation for the Doctrine of the Faith touching upon the celebration of the forma extraordinaria of the Roman Rite. The first decree, entitled Cum Sanctissima, deals with the question of the liturgical celebration of saints canonized subsequent to the issuance of the original 1962 liturgical books. The second decree, entitled Quo Magis, makes provision for seven (7) ad libitum prefaces to be permitted for usage in the Extraordinary Form. It should be noted that since the motu proprio of Pope Francis issued 17 January 2019[1], the same Congregation for the Doctrine of the Faith enjoys competency for such matters which formerly were under the jurisdiction of the Pontifical Commission “Ecclesia Dei”.
Both of these decrees should be seen to respond to the desires of Pope Benedict XVI as noted in Con grande fiducia, the nota explicativa accompanying the motu proprio Summorum Pontificum: “the two Forms of the usage of the Roman Rite can be mutually enriching: new Saints and some of the new Prefaces can and should be inserted in the old Missal.”[2] Universae Ecclesiae, the 30 April 2011 instruction which itself offered considerable guidance on the implementation of Summorum Pontificum, decreed: “New saints and certain of the new prefaces can and furthermore ought to be inserted into the older Missal, according to provisions which will be laid down imminently.”[3] Nearly nine years later, legislation has appeared from the Holy See on this matter.
One over-arching principle should be made very clear in discussing both of these decrees: the changes which have been implemented by these two (2) decrees are optional. No forma extraordinaria celebrant is being compelled to make any changes to the celebration of Mass according to the 1962 liturgical books. In a certain sense, the liturgical books of 1962 are being left as they are. This having been said, it is worth recalling, as the nota praevia for Cum Sanctissima likewise notes, up to and including the promulgation of the 1960 Codex Rubricarum, a number of Proprium Sanctorum Pro Aliquibus Locis (PSPAL) were included in the Missale Romanum. These Masses will be referred to in the nota praevia as well as in Cum Sanctissima itself.
1. Cum Sanctissima












