noun
- The pope who sponsored the introduction of the modern calendar (1572-1585. ).
- synonyms: Gregory, Ugo Buoncompagni
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Gregory XIII. Retrieved September 20, 2026, from http://smartdefine.org/gregory_xiii/definitions/1283190 |
| Chicago | WordNet. 2010. "Gregory XIII" http://smartdefine.org/gregory_xiii/definitions/1283190 (accessed September 20, 2026). |
| Harvard | WordNet 2010, Gregory XIII, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/gregory_xiii/definitions/1283190>. |
| MLA | WordNet. "Gregory XIII" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/gregory_xiii/definitions/1283190> |