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Alfonso I's Burgos Policy

Type Event Region Iberian Peninsula Time 1125–1128

In the 1120s Aragon's Alfonso I briefly controlled Castile's heartland after Queen Urraca's death and tried to impose his authority on Burgos and oth…

Timeline

  1. 1126León · LeónQueen Urraca died in March 1126 and her son Alfonso VII was crowned in León, but parts of Castile remained under Alfonso I the Battler's control, sparking fierce contests over the Castilian heartland including the Duero basin around Burgos.
  2. 1126–1127Burgos · CastileRelying on the nominal claim of his former marriage alliance with Urraca, Alfonso I occupied parts of Castile in 1126–1127 and imposed his authority, trying to bring core Castilian cities like Burgos into Aragon's sphere, provoking armed conflict with Alfonso VII.
  3. 1127–1128Támara · CastileIn the 1127–1128 Treaty of Támara, Alfonso I recognized Alfonso VII's rule of Castile-León and gave up control of Castilian cities like Burgos; Soria and Almazán went to Aragon, while Atienza, Sigüenza, and Medinaceli went to Castile, establishing the border between the two realms.

Sources