Key Facts
- Duration
- 1242 – 1910
- Territorial status
- Nominal kingdom within the Kingdom of Portugal
- North African extension
- From 1471, included 'African Algarve' holdings
- Administrative dissolution
- Replaced by Faro District in 1835
- Treaty of Badajoz
- 1267, confirmed Portuguese sovereignty over the region
Imperial Zenith Metrics
Historical Trajectory
Phase I: Rise
The title 'King of Silves' was first used by Sancho I of Portugal after capturing the Algarvian city of Silves in 1189. By the reign of Afonso III, the entire Algarve had been wrested from Moorish control, and 'King of Portugal and the Algarve' became an established part of the Portuguese Crown's official titles, marking the completion of the Portuguese Reconquista in 1242.
Phase II: Zenith
From 1471, the kingdom's scope expanded to include Portuguese possessions in North Africa, collectively termed the 'African Algarve,' prompting the plural form 'Kingdom of the Algarves.' Despite lacking distinct institutions or autonomy, the title elevated Portugal's prestige and reflected its expanding Atlantic and African horizons during the Age of Discovery. Castile briefly claimed the title after Alfonso X's 1253 conquest but lost it definitively by the 1267 Treaty of Badajoz.
Phase III: Decline
Administrative reforms in 1835 dissolved the kingdom's territorial basis, replacing it with the Faro District. The last North African outpost had already been abandoned in 1769, and Ceuta was ceded to Spain by the 1668 Treaty of Lisbon. The honorific title 'King/Queen of the Algarves' persisted in the Portuguese royal style until the monarchy's abolition in 1910, when Portugal became a republic.
Notable Imperial Reigns
Selected rulers mapping the empire’s trajectory