27 June

George II becomes the last reigning British monarch to participate in a battle when he commands his army at Dettingen.

The Battle of Dettingen took place on 27 June 1743 at Dettingen on the River Main, Germany, during the War of the Austrian Succession. The British forces, in alliance with those of Hanover and Hesse, defeated a French army under the duc de Noailles. The battle straddled the river about 18 miles east of Frankfurt, with guns on the Hessian bank but most of the combat on the flat Bavarian bank. The village of Dettingen is today the town of Karlstein am Main, in the extreme northwest of Bavaria.