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Henry Cavendish , 2nd Duke of Newcastle-upon-Tyne , KG , PC ( 24 June 1630 – 26 July 1691 ) , styled Viscount Mansfield until 1676 , was an English politician who sat in the House of Commons from 1660 to 1676 , and then inherited the dukedom .
 Cavendish, 2nd Duke, Newcastle-upon-Tyne
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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Answer:
 Cavendish, 2nd Duke, Newcastle-upon-Tyne