Ubi Nos

On the Pontifical States

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Original text published before 1931: public domain in the US. Modern English translations (e.g. vatican.va's) may still be under copyright.

Short link

This catalogue

Ubi Nos (1871). On the Pontifical States. docs.church. https://docs.church/ubi-nos

Official citation

Pius IX, Ubi Nos (15 May 1871). https://www.papalencyclicals.net/pius09/p9ubinos.htm