In this scenario at the beginning of the year 1300 AD a Mysterious being appears. This being looks exactly like the Grim Reaper. He goes from nation to nation killing off all the Nobility in Europe, Asia, Africa, North America, South America and various island chains. He even takes out the Pope of the time. He is seen killing these Nobles by both military and regular civilian alike. He does not kill any person who is not in Royal Authority or equivalent. After the Kull of various leadership. He is seen from time to time in following years. Whenever an attempt establish a new Nobility takes place. He kills the candidate. He does not go after Despots. He does not go after Prime Ministers, Presidents or Governors. Only Royals. How does this event and series of events affect world history from this point forward?
Special Note: This being is a supernatural entity. He is impervious to all know weapons of the time. He does not attack random everyday people and will only cause them to fall asleep if they attempt to interfere in his mission. He can appear anywhere and can't be stopped by fortifications. The only escape a Noble would have is to renounce their title and live the life of a peasant for the balance of their days.
Special Note: This being is a supernatural entity. He is impervious to all know weapons of the time. He does not attack random everyday people and will only cause them to fall asleep if they attempt to interfere in his mission. He can appear anywhere and can't be stopped by fortifications. The only escape a Noble would have is to renounce their title and live the life of a peasant for the balance of their days.