Major Events Feb 5 Frankish emperor Louis grants archbishop Salzburg immunity Jun 22 Pope Stephen IV, [V] elected to succeed Leo III Oct 5 Pope Stephen IV crowns Louis the Pious Holy Roman Emperor at Reims cathedral Who Died in 816 AD Jun 12 Leo III, Italian Pope (795-816), dies 814 AD History by Year 817 AD Medieval Popes Gregory I Gregory XIII Julius II Julius III Leo X Pius V