3054
During the 13th century , it fell to Michael I Ducas , the ruler of the Despotate of Epirus .
 organization: Michael I Ducas; organization: Despotate of Epirus
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Michael I Ducas; organization: Despotate of Epirus