261717
Its history goes back to the Scuole Granducali opened by Leopold II , Grand Duke of Tuscany in 1774 .
 Leopold II , Grand Duke of Tuscany
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Leopold II , Grand Duke of Tuscany