Person

Alfonso III of Asturias

c. 848–910 · 9th century · Also known as Alfonso the Great

Alfonso III, called the Great, was King of Asturias from 866 to 910. His vassals took Porto in 868 and Coimbra in 878, extending Christian settlement to the Douro and Mondego and creating the counties of Portugal and Coimbra. Chronicles written at his court shaped the idea of the Reconquista, and after him the capital moved to León.

Alfonso III of Asturias
Image: Pelagius · Public domain · Wikimedia Commons

Mentioned in 6 state histories

Kingdom of AsturiasCounty of PortugalMarwanid BadajozCounty of CoimbraKingdom of LeónKingdom of Galicia

See also

Cite this entry
APA
The Epoch Institute. (2026). Alfonso III of Asturias. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/alfonso-iii-of-asturias
MLA
“Alfonso III of Asturias.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/alfonso-iii-of-asturias. Accessed .
Chicago
The Epoch Institute. “Alfonso III of Asturias.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/alfonso-iii-of-asturias.
Harvard
The Epoch Institute (2026) ‘Alfonso III of Asturias’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/alfonso-iii-of-asturias (Accessed: ).

Last reviewed October 2026Random entry ↻