|←Author Index: Gr||Pope Gregory XIV
|Born Niccolò Sfondrati, was Pope from 5 December, 1590 until his death in 1591.|
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Works about Pope Gregory
- “Pope Gregory XIV,” in Catholic Encyclopedia, 1913.
- “Gregory (Popes)/Gregory XIV” in Encyclopædia Britannica, (11th ed.), 1911.
Works by this author published before January 1, 1923 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.