288392
The house was bought in 1602 by Sir Richard Grosvenor who extensively altered it some 40 years later to make it his town house .
 Sir Richard Grosvenor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sir Richard Grosvenor