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8th century
 9th century
 10th century
 11th century
 12th century
 13th century
 14th century
 15th century
 Post-Reconquista Rebellions
 
 North Africa
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| Battles of the Almoravids | 
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The siege of Oreja was a siege by the forces of Alfonso VII, Emperor of Spain, that lasted from April until October 1139 when the Almoravid garrison surrendered. It was the first major victory of the renewed Reconquista that characterised the last two decades of Alfonso's reign. The fortress of Oreja (Aurelia) was located in the left (southern) bank of the Tagus, within the current-day limits of the Spanish municipality of Ontígola.