Aiza is a name of Basque origin but with an unclear etymology. This spelling is first attested in 1127 in

Navarre Navarre (; es, Navarra ; eu, Nafarroa ), officially the Chartered Community of Navarre ( es, Comunidad Foral de Navarra, links=no ; eu, Nafarroako Foru Komunitatea, links=no ), is a foral autonomous community and province in northern Spain, ...

, now in Spain.{{cite web, title=Basque Onomastics of the Eighth to Sixteenth Centuries , url=http://www.geocities.com/karen_larsdatter/basque/1a.htm , archiveurl=https://web.archive.org/web/20091024225431/http://geocities.com/karen_larsdatter/basque/1a.htm , archivedate=2009-10-24 , url-status=dead Other variations of the surname are Ariza, Aritza and Aiza.

People

As surname

*King Íñigo Íñiguez (Basque, Eneko Enekones) called Arista in Spanish and Aiza or Aritza in Basque was the first king of Navarre, Spain. The House of Aritza (Aiza) was the ruling house of the Basque

Kingdom of Navarra The Kingdom of Navarre (; , , , ), originally the Kingdom of Pamplona (), was a Basque kingdom that occupied lands on both sides of the western Pyrenees, alongside the Atlantic Ocean between present-day Spain and France. The medieval state took ...

from 824 AD to 905 AD.Navarra y Aragón, Tomo IV. See España 08b
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References

Basque-language surnames