203803
Cardinal Richelieu , on the orders of Louis XIII , destroyed the castle leaving only the massive tower which today dominates the town of Crest .
 Cardinal Richelieu, Louis XIII
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cardinal Richelieu, Louis XIII