noun
- The queen of Castile whose marriage to Ferdinand of Aragon in 1469 marked the beginning of the modern state of Spain; they instituted the Spanish Inquisition in 1478 and sponsored the voyages of Christopher Columbus in 1492 (1451-1504. ).
- synonyms: Isabella, Queen Isabella, Isabella the Catholic
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Isabella I. Retrieved September 22, 2026, from http://smartdefine.org/isabella_i/definitions/1287717 |
| Chicago | WordNet. 2010. "Isabella I" http://smartdefine.org/isabella_i/definitions/1287717 (accessed September 22, 2026). |
| Harvard | WordNet 2010, Isabella I, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/isabella_i/definitions/1287717>. |
| MLA | WordNet. "Isabella I" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/isabella_i/definitions/1287717> |