|←Author Index: Gr||Pope Gregory X
|Born Tebaldo Visconti, was Pope from 1271 to 1276.|
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Works about Pope Gregory
- "Gregory X." in the Encyclopædia Britannica, 9th ed. 1880.
- "Gregory X." in the Encyclopædia Britannica, 11th ed. 1911.
- “Pope Gregory X,” in Catholic Encyclopedia, 1913.
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.