Complex sentence: Emmanuel Jean-Michel Frédéric Macron (born 21 December 1977) is the President of France and "ex officio" Co-Prince of Andorra, assuming these offices on 14 May 2017.
Split into simpler sentences: Emmanuel Jean-Michel Frédéric Macron (born 21 December 1977) is a French politician. Macron has been the President of France and "ex officio" Co-Prince of Andorra since 14 May 2017.