361648
He matriculated at the University of Leyden and later at the University of Orléans .
 University of Leyden, University of Orléans
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 University of Leyden, University of Orléans