6 September – On this day

The Battle of Nördlingen ( 1st Nördlingen ) was fought in 1634 during the Thirty Years’ War. The Roman Catholic Imperial army, bolstered by Spanish and Italian soldiers, won a crushing victory over the combined Protestant armies of Sweden and their German-Protestant allies.

After the failure of the tercio system in the first Battle of Breitenfeld in 1631, the professional Spanish troops deployed at Nördlingen proved the tercio system could still contend with the deployment improvements devised by Maurice of Orange and the late Gustavus Adolphus of Sweden.