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They had one child , Lady Henrietta Cavendish Holles ( 1694 – 1755 ) , who married the 2nd Earl of Oxford and Mortimer and was mother to Margaret Bentinck , Duchess of Portland .
 person: Lady Henrietta Cavendish Holles; person: 2nd Earl of Oxford and Mortimer; person: Margaret Bentinck , Duchess of Portland
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: Lady Henrietta Cavendish Holles; person: 2nd Earl of Oxford and Mortimer; person: Margaret Bentinck , Duchess of Portland