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Isobel 's second husband was Archibald Douglas of Kilspindie , called Greysteil , brother and advisor of the Earl of Angus .
 Archibald Douglas of Kilspindie, Earl of Angus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Archibald Douglas of Kilspindie, Earl of Angus