In the conflicts that the newly sovereign Kingdom of Castile and Pamplona/Navarre had in the 11th and 12th century, the Castilians were supported by many landowners from La Rioja, who sought to consolidate their holdings under Castilian feudal law.
U sukobima koji suodnedavno suverena Kraljevine Kastilije i Pamplone/ Navare imale u 11. i 12. stoljeću, Kastilijance su podržavali mnogi zemljoposjednici iz La Rioje, koji su nastojali konsolidirati svoje posjede po kastilijanskom feudalnom zakonu.