Mar 30 Ketsugan, Zen teacher, performs exorcisms to free aizoji temple Jun 30 Battle of Arbedo between the Duke of Milan and the Swiss cantons King Henry VI Aug 31 Henry VI becomes King of England at the age of 9 months King of England and Lord of Ireland Henry VI of England Oct 28 Charles V's son succeeds him as king Charles VII of France 1421 Historical Events by Year 1423 Medieval Popes Gregory I Gregory XIII Julius II Julius III Leo X Pius V
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V