Quo graviora, or On the Pragmatic Constitution, was the name of a papal brief issued by Pope Gregory XVI on 4 October 1833.Holy See, Breve Quo graviora (in Italian), accessed 16 November 2023 It was addressed to the bishops of the Upper Rhineland concerning the movement for reforms in the ecclesiastical province of the Rhineland at that time.
References
External links Text of Quo Graviora by Pope Gregory XVI