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Radziwiłł spent most of her life in Berlin and Königsberg , but paid much attention to her lands in the grand duchy .
 Radziwiłł, Berlin, Königsberg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Radziwiłł, Berlin, Königsberg