![History's Unparalleled Alliance: the Anglo-Portuguese Treaty of Windsor, 9th May 1386 - History of government History's Unparalleled Alliance: the Anglo-Portuguese Treaty of Windsor, 9th May 1386 - History of government](https://history.blog.gov.uk/wp-content/uploads/sites/2/2016/05/E-30-310-Pic-4.jpg)
History's Unparalleled Alliance: the Anglo-Portuguese Treaty of Windsor, 9th May 1386 - History of government
![History's Unparalleled Alliance: the Anglo-Portuguese Treaty of Windsor, 9th May 1386 - History of government History's Unparalleled Alliance: the Anglo-Portuguese Treaty of Windsor, 9th May 1386 - History of government](https://history.blog.gov.uk/wp-content/uploads/sites/2/2016/05/E-30-310-seal.png)
History's Unparalleled Alliance: the Anglo-Portuguese Treaty of Windsor, 9th May 1386 - History of government
Edumetrix - History's Unparalleled Alliance: the Anglo-Portuguese Treaty of Windsor, 9th May 1386. It is 630 years since a treaty of alliance between King Richard II of England and King John I
![On this day, England and Portugal signed the Treaty of Windsor in 1386, making it the longest Alliance still in effect : r/europe On this day, England and Portugal signed the Treaty of Windsor in 1386, making it the longest Alliance still in effect : r/europe](https://i.redd.it/jdg1d6dba5y61.jpg)
On this day, England and Portugal signed the Treaty of Windsor in 1386, making it the longest Alliance still in effect : r/europe
![Ficheiro:History of the Anglo-Portuguese alliance pt.1 "Humble beginnings".png – Wikipédia, a enciclopédia livre Ficheiro:History of the Anglo-Portuguese alliance pt.1 "Humble beginnings".png – Wikipédia, a enciclopédia livre](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/History_of_the_Anglo-Portuguese_alliance_pt.1_%22Humble_beginnings%22.png/206px-History_of_the_Anglo-Portuguese_alliance_pt.1_%22Humble_beginnings%22.png)