1. PrinciplesThe motu proprio “Traditionis Custodes” was issued by Pope Francis on 16 July 2021, along with an accompanying letter.As a restrictive decree, this present motu proprio of Pope Francis should be interpreted strictly, in accord with the legal maxim Regula Juris 15 (odiosa restringenda, favorabilia amplificanda). Interestingly, there is no vacatio legis on the document either.Pope Francis indicates in the first paragraph that the bishops constitute the principle of unity of the particular churches and govern them through the proclamation of the Gospel. As the specified end of the document is the “constant search for ecclesial communion”, it would...