The Dutch got their independence from this country in 1648 when the Peace of Westphalia was signed
The first peace treaty was signed by Spain, the Holy Roman Empire, the 
Dutch ... to Habsburg possessions in Alsace and achieved recognition of its 
sovereignty... [DOC] [TLE] Peace of Westphalia - New World Encyclopedia [PAR] Apr 9, 2015 ... A simplified map of Europe after the Peace of Westphalia in 1648 ...