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On 15 April 1860 , King Ferdinand II of Portugal , widower of Queen Maria II , watched the play and was seduced by Elise ’s voice and beauty ; she was then 24 years old .
 Ferdinand II of Portugal, Maria II, Elise
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ferdinand II of Portugal, Maria II, Elise