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Ulugh Beg and his son Abdal-Latif Mirza marched towards Herat in the spring of 1448 in order to take Khurasan from his nephew , Ala-ud-Daulah Mirza , who had escaped to Quchan after the defeat at the Battle of Tarnab .
 Ulugh Beg, Abdal-Latif Mirza, Herat, Khurasan, Mirza, Quchan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ulugh Beg, Abdal-Latif Mirza, Herat, Khurasan, Mirza, Quchan