The Treaty of London establishes Belgium as a kingdom and guarantees its neutrality.
Treaty over Belgium and Luxembourg
🗓️ 19 April 1839
The Treaty of London of 1839, was signed on 19 April 1839 between the major European powers, the United Kingdom of the Netherlands, and the Kingdom of Belgium. It was a direct follow-up to the 1831 Treaty of the XVIII Articles, which the Netherlands had refused to sign, and the result of negotiations at the London Conference of 1838–1839 which sought to maintain the Concert of Europe.
