> His diplomatic successes include organizing the coalition against Napoleon in 1812–1814, normalizing relations with post-Napoleonic France, settling the old border dispute between Canada and the United States, and ending the First Opium War with China in 1842, whereby Hong Kong was obtained.
https://en.wikipedia.org/wiki/George_Hamilton-Gordon,_4th_Ea...
> His diplomatic successes include organizing the coalition against Napoleon in 1812–1814, normalizing relations with post-Napoleonic France, settling the old border dispute between Canada and the United States, and ending the First Opium War with China in 1842, whereby Hong Kong was obtained.