Conflicts & Resolutions · Battle
Battle of São Mamede
The Battle of São Mamede was fought on 24 June 1128 near Guimarães between Afonso Henriques and the forces of his mother, Countess Teresa, and her Galician ally Fernão Peres de Trava. Afonso's victory gave him control of the County of Portugal, and it is traditionally seen as the founding event of Portuguese independence.

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Cite this entry
- APA
- The Epoch Institute. (2026). Battle of São Mamede. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/battle-of-sao-mamede
- MLA
- “Battle of São Mamede.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/battle-of-sao-mamede. Accessed .
- Chicago
- The Epoch Institute. “Battle of São Mamede.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/battle-of-sao-mamede.
- Harvard
- The Epoch Institute (2026) ‘Battle of São Mamede’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/battle-of-sao-mamede (Accessed: ).
Last reviewed October 2026Random entry ↻