The Dutch got their independence from this country in 1648 when the Peace of Westphalia was signed
[DOC] [TLE] The Treaty of Westphalia | History Today [PAR] On October 24th 1648, the Treaty of Westphalia was signed, marking the end of 
... crazed Wallenstein, who grew so sensitive to noise that he had all the dogs, 
cats ... country to desolation as hordes of mercenaries, left unpaid by their 
masters, ... Swiss independence of Austria and the Netherlands independence of 
Spain.