In 1782, he was sent on a secret mission to London to make peace feelers and later undertook official diplomatic visits that led to the Eden Agreement.
If by the future treaty of peace, Spain preserves West Florida, she alone will be the sole proprietor of the course of the Mississippi from the thirty-first degree of latitude to the mouth of this river. Whatever may be the case with that part which is beyond this point to the north, the United States of America can have no pretentions to it, not being masters of either border to this river.[2]
On 30 November, preliminary articles of peace were signed but it took a year, until 3 September 1783, for the Paris Peace Treaty to be signed.[3]
Hoffman, Ronald; Peter J. Albert editor (1981). Diplomacy and Revolution: The Franco-American Alliance of 1778. University of Virginia Press. p. 212. ISBN0-8139-0864-7. {{cite book}}: |author2= has generic name (help)
Hoffman, Ronald; Peter J. Albert editor (1986). Peace and the Peacemakers: The Treaty of 1783. University of Virginia Press. p. 286. ISBN0-8139-1071-4. {{cite book}}: |author2= has generic name (help)