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Estate houses in Scotland , also known as Scottish country houses , are large houses usually built on landed estate s in Scotland , from the sixteenth century , after defensive Scottish castles began to be replaced by more comfortable residences built for royalty , nobility and local laird s. The origins of Scottish estate houses are in the extensive building and rebuilding of royal residences , beginning with Linlithgow , under the influence of Renaissance architecture .
 Scotland, Scotland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Scotland, Scotland