841    In the Battle of Fontenay-en-Puisaye, forces led by Charles the Bald and Louis the German defeat the armies of Lothair I of Italy and Pepin II of Aquitaine.

842    Charles the Bald and Louis the German swear the Oaths of Strasbourg in the French and German languages.

845    The first King of all Brittany, Nominoe defeats the Frankish king Charles the Bald at the Battle of Ballon near Redon.

851    Erispoe defeats Charles the Bald near the Breton town of Jengland.

864    The Edict of Pistres of Charles the Bald orders defensive measures against the Vikings.