309468
She long hesitated in choosing his surname , styling him Romanov one day and Sitsky the other , but finally settled on Bobrinsky , a surname derived from the estate he lived in .
 Bobrinsky
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bobrinsky