274897
Less than two years later , after Juraj 's sudden death , his sons ( and Nikola 's nephews ) Nikola VII and Petar IV , both future distinguished Croatian Ban s , became his successors .
 Juraj, Nikola, Nikola VII, Petar IV
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Juraj, Nikola, Nikola VII, Petar IV