The Treaty of York was an agreement between the kings Henry III of England and Alexander II of Scotland, signed at York on 25 September 1237, which affirmed that Northumberland, Cumberland, and Westmorland were subject to English sovereignty. This established the Anglo-Scottish border in a form that remains almost unchanged to modern times. The treaty detailed the future status of several feudal properties and addressed other issues between the two kings, and historically marked the end of the Kingdom of Scotland's attempts to extend its frontier southward.
England and Scotland sign the Treaty of York, establishing the location of their common border.
On September 25, in the year 1237, England and Scotland sign the Treaty of York, establishing the location of their common border. This event is recorded as a Historical Events event in the history of September 25, one of 480 recorded events on this date across all of history.
Key Facts
- This event took place on September 25, 1237 (AD era).
- It is categorised as a Historical Events event in recorded history.
- Referenced in 1 Wikipedia article.
- Wikipedia source last updated on 23 March 2026.
On This Date in History 480
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