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He was the son of Edward Bouverie MP , of Delapré Abbey in Northamptonshire , and his wife , Harriet , the only daughter and sole heiress of Sir Everard Fawkener ; and nephew of the 1st Earl of Radnor .
 Bouverie, Northamptonshire, 1st Earl of Radnor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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Answer:
 Bouverie, Northamptonshire, 1st Earl of Radnor