You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: HISTORIC HEROES 
Clue: This man born in 1783 is considered the national hero of 5 different countries
simon bolivar

Category: MONARCHIES 
Clue: 1 of the 2 largely German-speaking monarchies in the world; they're about 250 miles apart
liechtenstein & luxembourg

Category: ECONOMICS 
Clue: In 2007 this 18th century professor & writer became the first Scotsman to appear on an English banknote

adam smith