The Treaty of Melno or Treaty of Lake Melno was a peace treaty ending the Gollub War. It was signed on 27 September 1422, between the Teutonic Knights and an alliance of the Kingdom of Poland and the Grand Duchy of Lithuania at Lake Melno, east of Graudenz (Grudziądz). The treaty resolved territorial disputes between the Knights and Lithuania regarding Lithuania Minor and Samogitia, which had dragged on since 1382, and determined the Prussian–Lithuanian border, which afterwards remained unchanged for about 500 years. A portion of the original border survives as a portion of the modern border between the Republic of Lithuania and Kaliningrad Oblast, Russia, making it one of the oldest and most stable borders in Europe.
The Treaty of Melno was signed, establishing the Prussian–Lithuanian border, which afterwards remained unchanged for about 500 years.
On September 27, in the year 1422, The Treaty of Melno was signed, establishing the Prussian–Lithuanian border, which afterwards remained unchanged for about 500 years. This event is recorded as a Selected Events event in the history of September 27, one of 442 recorded events on this date across all of history.
Key Facts
- This event took place on September 27, 1422 (AD era).
- It is categorised as a Selected Events event in recorded history.
- Referenced in 1 Wikipedia article.
- The event is associated with a specific geographical location (see map below).
- Wikipedia source last updated on 6 May 2026.
On This Date in History 442
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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