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With much of Europe convulsed by the Revolutions of 1848 , King William II decided to form at his own initiative a committee for revision of the constitution - rather than be forced into such a step by popular pressure , as were many other monarchs at the time .
 King William II
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 King William II