Magden post to Rheinfelden

Rheinfelden (Alemannic German: Rhyfälde, [ˈriːfæld̥ə]) is a municipality in the canton of Aargau in Switzerland, seat of the district of Rheinfelden. It is located 15 kilometres east of Basel. The name means the fields of the Rhine, as the town is located on the High Rhine. It is home to Feldschlösschen, the most popular beer in Switzerland.

The Battle of Rheinfelden (28 February and 3 March 1638) was a military event in the course of the Thirty Years' War, consisting in fact of two battles to the north and south of the present-day town of Rheinfelden. On one side was a French-allied mercenary army led by Bernhard of Saxe-Weimar while the other side consisted of a joint Bavarian and Holy Roman Empire army and led by Johann von Werth and Federico Savelli.

The Siege of Rheinfelden of 1633 or the Spanish recapture of Rheinfelden (Spanish: La Expugnación de Rheinfelden) took place in late October 1633, during the Thirty Years' War.The Spanish army (20,000 troops) of the Governor of the Duchy of Milan, Don Gómez Suárez de Figueroa, Duke of Feria, (Spanish Army of Alsace), after relieving and taking Konstanz, Breisach and Bregenz, captured by storm the Swiss city of Rheinfelden, as part of the plan designed by the favourite and chief minister of Philip IV of Spain, Don Gaspar de Guzmán, Count-Duke of Olivares, to release the Rhine route of the harassment by Swedish, French and Protestant-German troops (Heilbronn League), defend the Franche-Comté, safeguard the Tyrol, support the troops of the Holy Roman Empire, and open a strategic corridor for the Spanish troops from the Spanish Lombardy to the Spanish Netherlands.