In the world, Castilla (Castilla 
, Ketela 
, Castile 
) is quite a rare epicene first name. The forename Castilla is characteristic of Ethiopia, where it is quite a rare gender-neutral name, Colombia, where it is a very rare epicene name, and Italy, where it is a very rare female name. In absolute terms, the name is most common in Ethiopia, India, and Colombia. More prevalently, Castilla is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Castilla | Philippines, Spain, Colombia, Mexico, Peru |
| Ketela | Canada, Ethiopia, Finland, United States, South Africa |
| Castile | Philippines, Canada, United States, Israel, United Kingdom |
| Castiya | India |
Castilla is also a name for the fictitious and mythical characters: .
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sancho ii de castilla King of Leon and Castile, ES (b. 1036) |
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sancho iii de castilla King of Castile, ES (b. 1134) |
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berenguela i de castilla Queen of Castile and queen consort of Leon, ES (b. 1180) |
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sancho de castilla (1181-1181) (b. 1181) |
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| urraca de castilla Queen of Navarre, ES (b. 1133) |
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| sancha de castilla Queen Consort of Navarre, ES (b. 1139) |
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| garcía de castilla (1142-1146), ES (b. 1142) |
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| sancha de castilla (1182-1184) (b. 1182) |
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sancho iv de castilla King ofLeon and Castile (1258-1295), ES (b. 1258) |
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| berenguela de castilla Peerage person ID=41925, ES (b. 1228) |
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| berenguela de castilla Caastilian infanta, ES (b. 1253) |
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tello alfonso de castilla Castilian noble, ES (b. 1337) |
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sancho de castilla Illegitimate son of Alfonso XI of Castile, ES (b. 1342) |
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aldonza de castilla Lady of Aguilar de Campoo and Castañeda (b. 1382) |
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| sancho alfonso de castilla ES (b. 1331) |
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