Historical Events in 921 AD Sep 15 Saint Ludmila is murdered at the command of her daughter-in-law at Tetin. Nov 7 Treaty of Bonn: East France & West France recognize each other Famous People Who Died in 921 AD Sep 15 Ludmilla, wife of 1st christian Bohemian king Borijov I/saint, dies Nov 1 Richard, Duke of Burgundy 920 AD History by Year 922 AD