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The Duke had been encouraged to stay single , so that there might be a suitable groom for Princess Charlotte of Wales , the heiress to the throne , even if no foreign match proved suitable ; she had married Prince Leopold of Saxe-Coburg ten weeks earlier .
 person: Princess Charlotte of Wales; person: Leopold; location: Saxe-Coburg
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Princess Charlotte of Wales; person: Leopold; location: Saxe-Coburg