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A few years after the Duke 's death in 1744 the big house was demolished and the estate was divided and sold in parcels ; the last , the original house-site , transformed into ambitious Edwardian gardens then put on the market in 1929 , was bought by the North London Collegiate School in 1929 for the sum of £ 17,500 .
 Duke, North London Collegiate School
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Duke, North London Collegiate School