69799
King Peibio and his descendants are rulers of the area attested from about 555 AD until , in the middle of the 7th century , Onbraust of Ergyng married Meurig of Gwent and the two neighbouring kingdoms were combined .
 Peibio
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Peibio