Medieval era · 1373

Anglo-Portuguese Treaty of 1373

The Anglo-Portuguese Treaty of 1373 was signed on 16 June 1373 between King Edward III of England and King Ferdinand I and Queen Leonor of Portugal. It established a treaty of "perpetual friendships, unions [and] alliances" between the two seafaring states, and remains the longest-standing treaty still in effect today.

Anglo-Portuguese Treaty of 1373
Anglo-Portuguese Treaty of 1373 · English and Portuguese diplomats, Public domain, Wikimedia Commons
When
1373
Where
—
Era
Medieval

Before and after

Text from the Wikipedia article Anglo-Portuguese Treaty of 1373, CC BY-SA 4.0