Ghent

Houses built in the 18th century in Ghent hosted notable figures: King Louis XVIII of France, Tsar Alexander, King William I of the Netherlands, Wellington before he went to Waterloo, and an American delegation with future President John Quincy Adams.

An excerpt from the article 44 facts about Ghent

The signing of the so-called Treaty of Ghent, ending the Second British-American War, also took place there.