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She was an elder sister of Louise of Hesse-Kassel , consort of Christian IX of Denmark .
 Louise of Hesse-Kassel, Christian IX of Denmark
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Louise of Hesse-Kassel, Christian IX of Denmark