253880
Al-Nu ' man ibn al-Mundhir , known in Greek sources as Naamanes ( Νααμάνης ) was a king of the Ghassanids , a Christian Arab tribe allied to the Byzantine Empire .
 ibn al-Mundhir, Byzantine Empire
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 ibn al-Mundhir, Byzantine Empire