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Son of Constantine the Great and co-emperor alongside his brothers , his attempt to exert his perceived rights of primogeniture led to his death in a failed invasion of Italy in 340 .
 Constantine the Great, Italy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Constantine the Great, Italy