Jean I, King of France 1316-?

He was the post-humous son of Louis X. He lived only for a week or so. WI: He had survived to adulthood and actually reigned. Would this have effectively prevented the outbreak of the Hundred Years War between England and France? His survival would have prevented Edward III of England from claiming the French throne. Or would Edward have found an excuse to make war anyway?
 
I think that there was a rumour circulating back then that his uncle Philip did something nasty in order to become the King...
 
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