6038
His genealogy does not appear to have survived but John Colgan stated he was the son of a chief , so it is probable his father was the ‘ Ronan , son of Tuathal , Lord of the Airtheara ’ , who died in 620 according to the Annals of the Four Masters ( AU 625 , CS 625 , AI 626 ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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